Features:
1: With 2 rubber washers, the rubber washers can clamp the guide rail and prevent damage to the guide rail
2: 360 degree adjustment, lock at any angle, easy to disassemble when not in use
3: 230 mm long 50.8 mm OD tube for rods up to 42 mm OD
4: There is a 4.5 mm PVC pin inside, which passes through the bottom to prevent the rod from rotating