Quantum Storage HD21-3DR Three 21″ Skates, One with Drift Resister & Wing Kit

QUANTUM STORAGE HD21-3DR THREE 21″ SKATES, ONE WITH DRIFT RESISTER & WING KIT THIS KIT INCLUDES THREE 21″ SKATES FOR USE WITH ALL 18″ DEEP SHELF UNITS. SIMPLY BOLT TO BOTTOM OF SHELF POSTS AND PLACE ON V-TRACKS. ONE SKATE INCLUDES AN ADJUSTABLE DRIFT RESISTER TO SLOW DOWN AND MINIMIZE DRIFTING OF SHELVING FOR UNEVEN FLOORS. WING (JOINING) KIT INCLUDES FOUR 1/4″ THICK PLATES & HARDWARE. THIS KIT ALLOWS THE JOINING OF TWO WIRE SHELF UNITS SIDE BY SIDE, SHARING ONE TRACK.