These Straw Plug and anti-leak tumbler stopper kit is suitable for straws and cups. These tumbler stoppers can add an convenient atmosphere to your daily life. It saves space and is easy to store, which will not take up much space. These tumbler stoppers can be used for many times. Features -Color:Black -Material:Silicone -Size:2.50X2.50X1.50cm/0.98X0.98X0.59in -Size:2.80X2.00X0.30cm/1.10X0.79X0.12in -Size:8.20X1.50X0.50cm/3.22X0.59X0.20in -Note:Compatible with stanley Accompanying Cup 1.0 40oz only. - Made of silicone material, safe and practical, and reusable, protects the straw effectively. - Safe and practical for use, simple appearance if this tumbler stopper can make your usage experience good. - Straw tips cover is not only suitable for families, but also can be used for gatherings, picnic, party and any occasion. - Adopts fine craftsmanship, simple shape and reusable design, not easy to break, can be longtime used. - Perfect for your drink cup. Not easy to deform, tear or break, and can be kept for a longtime, reusable. Package list: 2 x Straw Covers 2 x Square spill-proof plug 2 x Round cap leak-proof plug