The Zarges Roof Rack Mounting system is a compact system that further enhances your off-road adventures. The kit contains four sets of hardware. The roof rack hardware is designed for the K470, K440, and K420 series. Compatible roof racks: Front Runner Gobi Rhino Rack Rhino Rack Pioneer Series 4X4 Prinsu NOTE: For use with ZARGES mounting brackets (sold separately) Brackets Installation Instructions