Features: For doors up to 36" wide Steel construction for long lasting durability Covered under Miseno's limited five year warranty Includes all necessary mounting hardware for easy installation Meets ANSI/BHMA A156.14-2013 Grade1 220lb (100KG) durability test POM wheel - 2-3/4" diameter Steel 1-1/4" diameter roller bearings Kit Includes: Rail spacer (5) Rail mount lag bolts (5) Rail mount washer M8 (5) Straight strap hangers (2) Hanger bolts for 1-3/8" door Hanger bolts for 1-3/4" door Hanger bolt washers M10 (8) Hanger bolt cap nuts M10 (4) Mortised door guide (1) with screws (2) anchors (2) Non-mortised door guide (2) with screws (4) anchors (4) Anti jump disk with screws (2) Rail door stops standard (2) Allen wrench M2 for door stops (1) Specifications: Track Size: 1/4” steel, 1-1/2” x 78-3/4” Strap Size: 1/4” steel, 11-3/4” x 1-1/2”