Jerry Stage‘s JS-TDS12 Truss Transport Stackable Spacers are for the JS-TDKIT Truss Dolly System. This kit includes (12) pieces of straight 12" box truss of any length. It is the quick and easiest option when it comes to transporting your straight truss segments. These spacers are compatble with the JS-TDKIT Dolly system, and it works simply by stacking up to 12 truss segments without scratching during load in and load out. Jerry Stage JS-TDS12 12 Truss Spacers & Truss Storage Stackers Features: 12 Anti-Scratch Truss Spacers. Holds up to 12 pieces box truss any size length. Heavy duty wheels glide with ease. Made with high quality aluminum. Fits F34/F33/F32/12" Bolted Straight Truss Segments. Fits other brands of F34 (12") Box truss.