3RR-RCB

"Caster platform with (4) 3"" locking casters 3RR/3RS Shock Rack Caster Platform Model: 3RR-RCB Roto molded caster board with 4"" locking wheels for convenient stacking and transportation of SKB's Roto Molded 3RR and 3RS Series military standard shock rack cases. The 3RR-RCB includes interlocking stacking lugs and a ... Series: Rack Accessories"