The WindMaster 4860K is designed to accommodate DuraLatch Roll-up and Rigid Signs (rigid sign mounting brackets are included, roll-up sign bracket sold separately). The 4818K has dual-springs for wind resistance. The legs are equipped with kick-release buttons for easy set-up and take down and are adjustable to accommodate uneven terrain. It features a patented BreakAway system, which allows vertical upright to break away from the stand on impact. The 4860K comes with a flag holder bracket that holds two wooden dowel flags (flags sold separately).