1.Buoy is Sleek and Hydrodynamic in Shape to glide through the water when towed or going through surf. 2.Increase your Dive with this Bright Buoy. 3.Constructed of Sturdy Nylon and PVC Fabric, the Buoy is built for Minimum Drag in the Water. 4.This product needs to be inflated by itself. 5.Quick inflates and easy deflates after using for convenient storage in your dive bag. How to use : Spearfishing size:57x20x15cm Material:Nylon+PVC colour:red Package Contents: 1 x Diving Buoy Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.