We are a professional manufacturer of PU foam products inTaiwan & China since 1986. also we have twenty years ofexperiences in thisfield. We have been cooperated with many famous companiesall over the world for past years.The stress balls are safe. A few quick squeezes of a stressball helps in improving blood circulati....Our product lines include:PU balls, PU toys, PU yoyo balls, PU gifts, PU key chains,PU stress relievers, PU promotional and educational items,etc. more than thousands of items. All items are producedunder an integrated R&D and comprehensive processes whichenable us to offer competitive prices and the on-timedelivery. We regularly develop new products to keepup with market trends and to satisfy our customers' needs.OEM, ODM and custom items orders are always welcomed. ... 
Taiwan