How to Size a Squishy Stimtoy: Finding Your Ideal Firmness and Squish Level

Quick answer

To size a squishy stimtoy, start with the firmness: super soft (OO20) compresses easily and melts in the hand, while soft (OO30) offers more resistance and structure. Then consider the physical size and weight—larger squishies feel different for fidgeting or squeezing, so match them to your grip and sensory preferences.

Choosing a squishy stimtoy is more about how it feels in your hand than any number on a spec sheet. Firmness (measured in Shore OO scale) and physical dimensions determine whether it satisfies your sensory needs or just ends up on a shelf.

This guide walks you through the process of pairing size and squish level with your preferences, so you can pick a stimtoy that earns its keep.

Understand the OO20 vs OO30 firmness difference

Squishy stimtoys are typically made from platinum silicone with different Shore hardness ratings. The lower the number, the softer and more pliable the material. OO20 is super soft—it compresses easily with light pressure and bounces back slowly, making it ideal for gentle, tactile fidgeting or stress relief. OO30 is still soft but offers more resistance, holding its shape better for a firmer squeeze that still has give.

When you hold a squishy, think about what your hands crave. If you like pressing into a toy and feeling it yield under your thumb, super soft OO20 will deliver that melt-in-your-hand sensation. If you prefer a bit of pushback and a more defined shape, soft OO30 keeps the cuteness but with a sturdier feel. Both are gentle on sensitive skin.

• Try a sample squishy before committing to a full-size stimtoy if you're unsure about firmness.

Match the physical size to your grip and playing style

Squishy stimtoys come in various dimensions—from palm-sized to larger accent pieces. A smaller squishy (around 5 cm across) fits neatly in one hand, perfect for discreet fidgeting at a desk or in a pocket. A larger stimtoy gives you more surface area to squeeze, roll, or press against your palm, which may feel more satisfying for deep-pressure input.

Consider how you plan to use it. If it's primarily a focus tool, a compact size that sits comfortably in your grip is easier to keep nearby. If you want a lap-friendly squish for sensory breaks, a bigger piece with more volume might be better. There's no wrong choice—just think about what feels good for your hands.

• Check the listed dimensions and compare with a familiar object (like a smartphone) to visualize the size.

Assess the squish level through the material's behavior

Squish level isn't only about firmness—it's also about how the material deforms and recovers. Super soft OO20 squishies often have a satisfying 'melt' that slowly returns to shape, while OO30 has a snappier response after compression. The shape and thickness of the toy also affect the feel: a chunky shape with thick walls will feel denser than a thin, hollow one.

If you can, handle a sample or read reviews from other users. Because everyone's sensory preferences differ, firsthand experience is the best guide. Tentickle's squishies are handmade, and minor variations in silicone pour can add tiny air bubbles that don't affect the squish but add uniqueness.

• When ordering online, look for videos or detailed descriptions that demonstrate the squish.

Decide what 'perfect squish' means for you

There's no universal 'best' squish level—only what your hands prefer. Some people crave the gentle, almost fragile feel of super soft OO20, while others want a bit more structure to press against. The right choice depends on whether you're looking for calming sensory input or a more active fidget.

Tentickle offers a variety of squishy stimtoys, and their product pages include firmness and dimensions so you can compare. If you're torn, consider getting one of each firmness to see which you reach for more.

• Think about whether you use stimtoys for focus, anxiety relief, or pure fun—each setting may suit a different squish.

Step-by-step to find your ideal squishy

1. Decide the firmness first: Choose between super soft (OO20) for maximum plushness or soft (OO30) for a slightly firmer squeeze. Reflect on what you want out of the toy: gentle comfort or more tactile resistance. Common mistake: picking a firmness based on looks alone. Always check the Shore rating.
2. Check the size against your hand: Look at the height and width in centimeters or inches. Visualize it in your palm or compare to a common item to see if it fits the way you intend to hold it. Checkpoint: If you plan to squeeze with one hand, ensure it fits your palm width comfortably.
3. Consider the squish recovery: Think about how the material behaves when pressed. OO20 slowly melts back to shape; OO30 bounces back more quickly. This affects continuous use. Watch for a too-soft toy if you prefer a springy return: OO30 might serve you better.
4. Account for surface details: Textures like nubbins or ridges change the tactile feel. A smooth squishy is more uniform; a textured one adds extra sensory input. Checkpoint: Run your fingers over any textured features to decide if they're pleasing or distracting.

Stimtoys to compare

• Burgore 'Trophy' #1 squishy stimtoy super soft (OO20): Super soft (OO20) firmness, measures 5cm x 6.5cm (1.96in x 2.56in). It's a novelty squishy not designed for internal use, and may have slight imperfections like tiny air bubbles from the silicone pour. This squishy gives you a true OO20 experience—soft and gentle, ideal for those who want maximum squish. The compact size fits in your palm, making it a good first pick to test if super soft is right for you.
• Nemonee 'Trick Or Treat' #1 soft (OO30) GITD: Soft (OO30) firmness, glows in the dark. It stands 9.5cm/3.7" tall and 3.3cm/1.3" at its widest point, with an internal channel that fits a standard bullet vibe. While Nemonee is a vibe sleeve, its OO30 firmness and size make it a useful comparison point: you can see how a soft (OO30) toy feels in hand, and if you later want to use it with a bullet vibe, you know it fits the standard size.

Finding the right squishy stimtoy is a personal journey. Start with firmness, then zero in on size and texture. Give yourself permission to try one—and swap if it's not quite right. The goal is a toy that feels like a natural extension of your sensory world.