GoSili - Universal Straw Tops - 3 Packs
Give any cup a straw top in seconds. The Siliskin Straw Top is a universal silicone top that stretches over and grips the top of any size cup instantly making it spill proof. Silicone suction keeps it in place so it does not pop off while in use. Perfect for on-the-go or at home. Set comes with 3 tops and one reusable silicone straw.