• Designed specifically for the Matrix Superbox• Quickly and easily transform the box into a 2 wheel transport system• Inserts supplied for use on both the S25 & S36 Superbox• Packs away neatly into the supplied carry bag • Removable, height adjustable handles with ergonomic rubber handgrips.• Supplied with 2 Solid puncture resistant wheels• Quick release system for removing the wheels at your peg.• Height adjustable support for rods / holdalls