Ultra Soft 0 Shore A Squishy Silicone Gel for Pop It & Fidget Toys This 1:1 AB two-component transparent squishy silicone gel delivers an ultra soft 0 Shore A feel with 300-400 penetration, giving a perfect squishy texture for pop it toys, stress balls and sensory fidget products. FDA and SGS certified, it is non-toxic, odorless and washable, and its tear-resistant gel keeps its shape after repeated squeezing. Key Features Ultra Soft 0 Shore A: Very low 0 Shore A hardness