The Mini Straw replacement pack pairs with the ezpz Mini Cup + Straw Training System. With replacement straws you can do less washing. Plus, you wont have to stress about misplacing (or losing) a straw! 100% Food Grade Silicone (BPA, BPS, PVS, phthalate and latex free). Dishwasher safe! Built to last (silicone will not wear, fade or corrode).