• These SHF8/SHF10/SHF12/SHF16 Supports are usable with 8/10/12/16mm Smooth Rods, you can simply slide the rail through then tighten the clamp screw at the top to fix it in place.
• Smooth moving
• low friction
• high performance and long life
• Used to fix both sides of liner rail shaft, making it work better