Features: Special hose for baby milk bottle straws, suitable for most bottle straws. 100/200cm length is optional and can be cut and replaced by oneself, saving money and being convenient. The outer diameter is 5mm and the inner diameter is 3mm. Food grade liquid silicone, safe and environmentally friendly, safe and reassuring to use. It is the perfect accessory for damaged bottle straws. Specifications: Component: Silicone Length: 1m, 2m (optional) Size: approx. 1m/3.28ft, 2m/6.56ft Package Includes: 1Pc Baby Milk Bottle Replacement Hose note: Replacement hose for baby milk feeding bottle specific straw (not for cup). Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.