Large squish balls with silicone inside are soft, squeezable stress-relief toys filled with a thick, gel-like silicone substance that enhances their squishiness. When pressed, the balls retain their shape but provide a slow, satisfying rebound due to the dense silicone core. The outer layer is often made of a stretchy, flexible material like rubber or thermoplastic elastomer (TPE), allowing the ball to be squeezed, pulled, and manipulated without breaking.

These squish balls come in various sizes, usually ranging from palm-sized to larger versions for a fuller, more immersive tactile experience. They are designed to help with stress relief, anxiety, and focus, making them popular among both children and adults. The silicone filling creates a smooth and consistent texture, offering a more substantial squish compared to air- or foam-filled versions. Many also feature vibrant colors, glitter, or even small beads inside, providing a visually stimulating and calming experience.

Ideal for use at home, school, or work, these squish balls are excellent fidget toys that promote relaxation, help reduce tension, and improve concentration.