Using premium BPA free silicone, Oso-Cup is very sturdy.
Made from high quality silicone that is BPA, BPS, PVC, lead, latex and phthalate free. Vented design allows for easy drinking through the straw when compared to other silicone cups. RaZbaby Oso Silicone Cup & Straw Black The Oso-Cup is designed to fit babys mouth and hands with convenient handles.Dishwasher safe makes cleaning Oso-Cup a breeze to clean.