Specifications:Condition: High qualityMaterial: PVC. Colour: grey. Outer diameter: Approx. 6.5 cm / 2.5 inches. Lower outer diameter: Approx. 4.2 cm / 1.6 inches. Height: Approx. 5 cmApproximate weight: 85 g.
Package list: 1 x air valve for boats.
Note: After inflating, you should tighten the valve and the valve cap when air leaks.