Cupture 12 Vintage Blue Mason Jar Tumbler Mug With Stainless Steel Lid and Straw - 20 oz 12 acrylic cups each with a stainless steel lid and straw Heavy duty double wall insulation with solid one piece outer body and carrying handle. Threaded Stainless Steel Lid, with Silicone Gasket Seal, and Reusable Straw included. BPA Free Strong & Durable Plastic (Acrylic) | Rinse & Reuse | Large Opening for Easy Filling and Cleaning. Safer for use around the swimming pool, at the beach, and in the hands of young ones.