Johnson Hardware 100FD604 Track & Hardware Set for 4-Panel Bi-Fold Doors, 60" Clearance They are pre-slit so they

They are pre-slit so they slip onto pipes quickly and easily

Textured stainless steel finish digital scale

gracefully swept legs and carved side panels

Vari-tooth design

"alligator

Johnson Hardware 100FD604 Track & Hardware Set for 4-Panel Bi-Fold Doors, 60" Clearance They are pre-slit so theyThe Johnson Hardware 100FD Series 60" Track and Hardware Set for 4 Panel Bi fold Doors is a commercial grade folding door hardware system. For door panels 1 1 8" to 1 3 4" thick, 15" wide, weighing up to 75 pounds per panel. Designed to carry heavy solid core doors. Patented tricycle hangers with large ball bearing wheels ride smoothly and quietly on convex shaped rails with precision single point contact. The hangers feature a quick disconnect clip