Air nozzle: 90 degrees Air nozzle Fits For Razor e100 e200 Bladez Mongoose Material : Rubber which is better in air tightness, elastic damping and aging resistance than natural rubber. which provides long term reliability for your electric scooter wheels EASY INSTALLATION Product name: Inner Tubes Size: 200x50mm(8inch x 2inch) Material:rubber colour:Black Package Contents: 2 x Inner Tubes 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.