1. Applicable to Mobile 3 extension pole, extension rod for Mobile 3, for Mobile 2, for , for 4. 2. 1/4 inch screw interface at the top and bottom respectively, which can expand the use of more equipment. 3. Aluminum alloy material, strong and durable, special treatment of the handle, comfortable to 4. Turn counterclockwise to unlock and unfold clockwise to fix. color: black material: aluminum alloy size: 19~73cm x 3cm Package Contents: 2 x Extension Rod Only the above package content, other products are not included. Note: Light shooting 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 +/- 1-3 cm.