1.Prevents spills and messes: The water cup overflow stopper accessories come with anti-spill plugs that prevent any liquid from overflowing out of the cup, making sure you don't have to deal with spills or messes. 2.Versatile capacity: The product is available in two capacities - 30oz and 40oz - making it the tumbler size of 1.0. 3.Easy to use: These accessories can be easily inserted into your cup tumbler and used without any hassle or difficulty. 4.High-quality material: Made of silicone, the accessories are durable, flexible, and long-lasting, making them a great investment for frequent use. 5.Value pack: The set includes 2 straw caps, 2 square anti-spill plugs, and 2 round anti-spill plugs, at an affordable price, ensuring you get the most value for your money. Product name: water cup overflow stopper accessories Material: Silicone Capacity: 30oz, 40oz Size: straw caps: length 5cm* inner hole 0.8cm/ 1.97 * 0.31 * inch square anti-spill plugs :2.5x1.7x0.5cm/ 0.98 *0.67 *0.20 inch round anti-spill plugs:diameter 2.1cm * height 1.1cm/ 0.83 * 0.43 * inch list11 straw caps +1square anti-spill plugs + 1 round anti-spill plugs list2: 2 straw caps + 2 square anti-spill plugs + 2 round anti-spill plugs Notice: Please understand that color deviation may vary due to different monitor settings. Due to manual measurement, there will be some errors, which is a normal phenomenon. If you encounter problems, please inform us at the first time, we will give you the best service and solve the problem at the first time.