Description from Manufacturer:

Surf at Work on the first air-spring platform for standing desks, the Santa Cruz Wurf Board. Designed for the average stance, either regular or goofy, the Santa Cruz Wurf Board provides the comfort, cushion, and responsiveness you are looking for in an anti-fatigue mat. You can now surf at work on a highly supportive, lively, springy surface that encourages users to make continuous micro-movements. What does this do for you? By improving blood flow, micro-movements make it so you can stand longer more comfortably. But that isn’t all - Additional benefits include improved posture; strengthen feet, legs, core, and back; and raised alertness, focus, and productivity. Work + Surf = Wurf

Medium Santa Cruz Specs

• Size Medium - 30.9" x 16.7"
• 2" high curved edge massages feet arches and permits lower-leg stretches.
• Lightweight (1.9 lb), easy to slide in and out with your feet when switching between standing and sitting, especially helpful for people who have difficulty bending over.
• Fully adjustable air-spring surface, firm or bouncy, to meet your weight and performance needs. (Max Weight: 250 lb)
• Non-slip dimpled design, grips all types of flooring when weight is applied to it.
• Use with or without shoes (no stiletto heels).