Swing assisted, economical, move tall heavy loads with ease. Especially designed to handle today’s vending machines. The retractable swivel caster assembly assists in supporting the load during operation. It comes equipped with a Ratchet Strap Tightener with Automatic Strap Recoil and the patented Roller Bearing Crawlers. A real backsaver! Available in three heights. Operates at a 55 degree angle with the swing released.