The toughest ball on the market. Made from Dog-Safe material, it's safe and durable; the weight is off-set so each ball has unpredictable roll. This is the ball that will last and last, and it's made in the USA from materials sourced in the USA, free of phthalates, latex or BPAs. SimpleDog products come with a lifetime replacement guarantee. If it gets destroyed, just send us the pieces and we will replace it!