Innovative Features: Variable front caster system - foot petal adjusts casters from fixed to rigid for full range maneuvering when desired. Stowable handle – conveniently stows under platform bed when not in use. Integrated Brake – holds platform in place for loading and unloading. Durable Construction. Structural Foam construction for heavy duty performance. Won’t rust, chip, dent, or bend. Powder coated steel on both the handle and the frame. 8” smooth rolling nylon casters. Options and Accessories. Available in multiple sizes and materials. Offered in standard duty or heavy duty caster options. Four tie-down slots to secure loads.