Description: This item adopts high quality, environmental protection PP material, non-toxic, no peculiar smell, safe to use. Built in multi-layer silicone sealing ring to ensure no leakage after installation. With a anti-dust cap, it can prevent dust from polluting the drinking water, healthy. Simple and practical, it's a good choice for home and travel use. Worth buying. Features: Adopting high quality, environmental protection PP material, non-toxic, no peculiar smell, safe to use. Built in multi-layer silicone sealing ring to ensure no leakage after installation. With a dust-proof cap, it can prevent dust from polluting the drinking water, healthy. Easy to install. Just press it into the bucket mouth and rotate clockwise till it's fully fixed. Simple and practical, easy to spout water from water bottles, a good choice for home and travel use. Specification: Condition: 100% Brand New Material: PP Product Diameter: Approx. 5.5cm / 2.2inch Product Height: Approx. 9cm / 3.5inch Package Weight: Approx. 60g Package Included: 1 * Drink Water Bottle Dispenser Pump Note: It is suitable for water bottle of 5.5cm in mouth diameter, not suitable for threaded mouth.