1.100% New and High Quality 2.Suitable for all type Vacuum Clean 3.Please measure the inside diameter of your product at the time of purchase. This is very important. Otherwise, it not be installed. 4.The main connection and extension functions,big head is connected to a hose or a hand holding tube,small end is connected to the suction head. size: Inner diameter: 3.5cm Material:metal colour:Silver Package Contents: 1 x Vacuum cleaner extension 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.