[Cable Tray Roller]: Cable Tray Roller suitable for long term use, ensuring smooth cable pulling and avoiding cable damage [Multi function clamping design]: Wire Pulling Tool can clamp on the inside, outside and corners, and the large circle design provides better compatibility and adapts to a variety of bridges and cable specifications [Strong clamping]: Electrical Wire Pulling Tool is designed to be sturdy, strongly clamp the cable, and is not easy to loosen, ensuring a stable and reliable wire laying process [Quick adjustment]: Auxiliary Wire Pulling Tool butterfly screw design can quickly adjust the clamping force, easy to operate, easy to install and adjust [Smooth Rolling]: Cable Tray Roller, Practicality and beauty,Easy to use for Construction Site Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Color:As Shown Material:Metal Package Contents: 1 * Cable Tray Roller Only the above package content, other products are not included. Note: Light reflection 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.