ALUMINIUM Track fit door thickness 1-3/8" and 1-3/4" with up to 88LBS per panel. TWO-WAY SOFT CLOSE - Smooth 608ZZ ball bearing wheels with soft-closing hardware to bring door to a quiet and gentle stop. Prevent Slammed doors and pinched fingers. SIZE - Available in 48" and 72" track. The track can be cut down to fit custom opening width. FINISH - Available in Aluminum or Black track with matching finger pulls EASY TO INSTALL - Include 1x aluminum track rail, 2x wheel hanger, 2x double sided 608ZZ soft close, 1x floor guide, 2x finger pulls, 1x adjustable wrench, and mounting hardware ALUMINIUM Track fit door thickness 1-3/8" and 1-3/4" with up to 88LBS per panel.