Model Number: RJ-0314 size:Inner diameter: 3mm, Outer diameter: 14mm colour:Black Material:Latex size:1m Package Contents: 1 x Spearfishing Latex Tube 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.