Model Number: RJ-0314 size:Inner diameter: 3mm, Outer diameter: 14mm colour:Black Material:Latex size:50cm Package Contents: 1 x Spearfishing Latex Tube Only the above equipment content, different products are usually not included. Note: Light and diverse reveals can cause the colour of the article within the picture somewhat diverse from the genuine thing. The measurement allowed error is +/- 1-3cm.