The size didn't fit and it kept falling off, so I repurchased a different size, making this one unnecessary. I used it for about two days, but there are almost no scratches or stains, so would anyone be interested? Product Name: Water Bottle Pouch Bottom Cover (Water Bottle Bottom Cap) Color: Black (kuro) Material: Silicone Size: Diameter 7cm (70mm), Height approx. 1.8cm Perfect for protecting and preventing scratches on the bottom of children's water bottles! Prevents the bottom of the water bottle pouch from falling out Extends the life of stainless steel water bottles and water bottle pouches Silicone cover