We love stainless steel straws as much as the next person, but we don't love banging them against our teeth. Our silicone straws are nontoxic, flexible, safe for teeth, and compatible with our GoSili straw cup toppers. 100% European-grade silicone. BPA, BPS, phthalate, PVC, and lead free. Includes six straws of 3 different lengths. Dishwasher safe. Straws are 5 1/2", 6 1/2" and 8" in length with an opening of 0.5 cm.