FBT KW-X Castors Kit for FBT X-SUB Series Subwoofer

The FBT KW-X Castors kit for FBT X-SUB Series Subwoofer is a set of 4 castors that fit the FBT X-SUB range of sub woofers. Fits the FBT X-SUB 15SA and X-SUB 18SA. Turning a sub woofer into a sub woofer with wheels!