This is a silicone bottom cover (replacement/protection) for water bottle pouches. This cover can be attached to water bottle pouches for 0.6 to 1 liter bottles, such as those from Thermos and Zojirushi. Children now go to school with water bottles every day. As a result, isn't the deterioration of water bottle pouches accelerating? Also, if they play outdoor sports like soccer or baseball, they often place their water bottles directly on the ground, leading to the bottom of the pouch getting scuffed and worn out. Are you not troubled by this? This product allows you to use your water bottle pouch again by attaching it to a worn-out pouch, especially if you're hesitant to buy a new pouch. Also, using it early on can protect your water bottle pouch and prevent deterioration. Made of silicone, it can be washed repeatedly and used hygienically. By attaching it over a 9cm diameter water bottle pouch, or directly to a 9cm diameter water bottle, it can also prevent dents and scratches on the water bottle. ⚠️ Please be sure to check the size of your water bottle and water bottle pouch before purchasing. ・Size: Diameter 9cm x Height 4.5cm Thickness 2mm ・Color: Black ・Material: Silicone ・Quantity: 1 piece The photos show the product taken out of the bag for photography, but an unopened, brand-new, unused item will be sent. (Photo 4) Due to being an overseas product, there may be some dirt or scratches. Please understand that this is a product inspected and measured by an amateur, and is an imported item. Thank you for your consideration. #kotomatsu