Features: Wide opening, fully show the milk bottle unit markings. Silicone, odorless, environmentally friendly, resistant to pulling, soft and comfortable. Bottle sleeve with grip handle for better fall prevention effect, avoiding scratches and abrasions. Great for infants and toddlers who are bottle fed, especially those little adventurers prone to dropping or bumping their bottles. These silicone sleeves are great for use at home, in daycare, or travel, effectively reducing the risk of bottle damages. Specifications: Component: Silicone Color: refer to picture to selection please Size: about 6.5x11cm/2.56x4.33inch Opening Diameter: about 5.4cm/2.13inch Universal use of various bottle size over 5cm Package Includes: 1Pc Baby Milk Bottle Handle Case note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.