CUSTOM-WHOLESALE-NEW-2019-AVOCADO-SPIKY-SQUEEZE 100% eco-friendly polyurethane material with free of harmful substances, and all products had been passed EN71 & ASTM F963 certification. they had been divided into two categories: one is for different kinds of stress balls, the other is for different kinds of shapes and moulds, it is available to make general resilience stress balls, super rebounce balls and super squishy scented products as customized requirements. we are professional manufacturer with more than 10 years experiece, superior quality and competitive price are ensured, we have been produing PU foam products for volume of buyers in many Countries, including USA, Europe, and so on.