Multi-Functional Portable Trainer - AB roller and push-up barFeatures Light Weight 3 polyurethane wheels and solid durable construction give you more control Comfort Grip Foam Handle Strong Steel Body Eco friendly abs material Wear reducing Ball bearing design Non slip PU Wheel Package: AB WOW Dragon fully assembled Brake to convert to push up bar Comfortable Kneepad Color Instruction Guide Size Dragon: 13" (width) x 9" (Length) Kneepad: 13. 4" (Length) x 6. 7" (width)