Gibraltar's modular rack design works perfectly for Drum Corps multi-instrument stations giving unlimited mounting options. A nine-inch regulation locking caster is mounted directly to the rack, making the entire station mobile. Rack stations break down small for storage, and with all Gibraltar mounting accessory options, your set-up can change as needed. Build set-ups from Gibraltar's vast selection of rack parts and mounts or use the GRF rolling frame, GRF1T 1st tier and GRF2T 2nd tier pre-packaged racks.