All Features: 5 Clamps for Fixing Track 2 Door Stoppers 1 Rail, Length 6.5’ or 8’ 2 Anti Jump Blocks 2 Sliding Door Rollers 1 Floor Guide Screws and Allen Key Color: Stainless Steel Brand: US Futaba Package Contents: Steel with powder coat or stainless steel, Max. door weight: 300 lbs. (140 kg), Suitable for door thickness of 1-3/16” – 1-3/4” (30 – 45 mm), 4’ (1219 mm) rail extension (predrilled for soft close mechanism) available in steel matte black, Black wheel is made of POM (polyformaldehyde) Sell Without Stock: No