The Rifton Pacer Gait Trainer Medium, model K502, is a gait trainer designed for use by children and adults with walking and balance disabilities. This walker features five supportive prompts that provide weight-bearing assistance and alignment. The prompts mount on the top bar with clamps, and can be removed when they are no longer needed. The basic unit is a lightweight, folding aluminum frame with a stable U-shaped base with four large-diameter caster wheels. The casters have separate control features for brake, swivel lock, variable drag, and one-way ratchet control, to use in any combination to control movement. The frame with prompts can be used in an anterior or posterior position. The frame telescopes for height adjustment to accommodate growth. OPTIONS: Arm prompt set, small, medium, or large padded chest prompt, molded hip positioner with or without pad, thigh prompt set, ankle prompt set, handholds, and communication tray. DIMENSIONS (LxWxH): Open, the frame is 32 x 26 x 21 to 26 inches. When folded, the frame is 32 x 26 x 17 inches. The arm prompt height is 24 to 34 inches and the chest prompt height (top edge) is 28 to 38 inches. The small chest prompt circumference adjusts from 14 to 28 inches, the medium chest prompt adjusts from 22 to 40 inches, and the large adjusts from 28 to 50 inches. This unit is designed for users with a standing elbow height of 24 to 34 inches. CAPACITY: Maximum user weight is 150 pounds. WEIGHT: 15 pounds. COLOR: Red, blue, purple, champagne, raspberry, or electric lime.