Thank you for viewing! Children's water bottles and water bottle covers are surprisingly expensive. But kids use them constantly, so they get tattered quickly... This is a helpful item for those times! ☆ Prevents the bottom of your water bottle cover from falling out, just by attaching it to the bottom! ☆ ▶︎ Washable and reusable ▶︎ Simple design that blends with any cover ♪ ▶︎ Elastic and durable, making it economical! 【Product Specifications】 ⚠︎ This is not the water bottle itself, but an item to attach to the water bottle cover ⚠︎ ・ Can be used with Hydro Flask and Thermos. ・ Color: Purple ・ Material: Silicone ・ Size: Diameter 9cm, Height 4.2cm, Thickness 2mm ※ It will fit most standard sizes (0.8~1.0L), but please be sure to check the size. ※ Using double-sided tape for attachment will increase the strength. (Not included) ※ If it doesn't fit, you may be able to use it by adding thickness to the cover with sponge tape, etc. <Product Condition> New and unused. Due to being an imported product, there may be loose stitching or small scratches/stains. ※ The product has been opened once to check its condition. ※ Please note that the color in the images may differ from the actual product depending on your browser and settings. ※ Please refrain from price negotiations.