Height-adjustable desks are now a popular fixture in the modern office/home. They make the transition from sitting to standing completely effortless. These occasional shifts in the body's position and posture are not only essential for blood circulation, helping to relieve shoulder, back, neck pain but also for keeping the mind alert. Our rolling laptop stand has a 28" x 19.75" tabletop with a convenient bumper that's designed to keep your laptop secure. This portable sit stand desk also features a full 90° tilt for compact storage when not in use. With pneumatic height adjustments, easily transition from sitting to standing height. Squeeze lever located at the bottom of tabletop and adjust from 29" to 44" high or any height between. Squeeze lever and push down desk to lower. Designed to move with you, full-swivel wheels make it easy for repositioning. This mobile desk has two locking casters that transitions your desk from mobile to stationary to fit your on-the-go schedule. This movable laptop desk includes an iPad or iPhone dock with a charging cable slot, a cup holder, plastic bumper, and a metal hanging hook. With a square ergonomic tabletop shape available in brown or white, this podium is ideal for school, offices, and lecture halls. Sit stand desks help increase your energy, improve your mood, harness joint and muscle movement, boost productivity, help lose weight, improve mental focus, lower risk of disease, and reduce caffeine intake. Color: Brown and Black.