Sports Hoop&reg; for Exercise: Trim Hoop&reg; 2MS - 2.3lb (Dia.37") Medium-small, Exercise Hula Hoop with 50 minutes Workout Lesson DVD Weighted Sports Hoop hula hoop for workout exercise. For teenagers and adults. Great way to have fun and adopt a healthy lifestyle. Maximizes weight loss and improves workout results. Weighs 2.3 pounds (1.0 kg) and measures 37 inches (94cm) across. No Ridge, Smooth inner circle, Comfortable foam padded exterior, high quality durable plastic core. DVD contains hooping instruction and workout lessons. Easy to master! Sports Hoop&#174; unique designs are heavier and wider than traditional hula hoops. The weight of the hoop contribute to the intensity of the hooping exercise. The large diameters of the hoops help reduce the effort needed to spin the hoop. Easy to assemble and disassemble. 8 detachable sections for easy storage and transport. Made of a durable plastic core with a soft foam exterior for comfortable and fun exercise. GS certified.