Description: 【Material】: This exercise hoop fits all body types. Soft PVC tube fits snugly around your waist, and prevent from waist injured. Internal weighted metal spring can strengthen core strength. 【Smooth Rotation】: This fitness hoop features flexible rotatation with low noise, more smoother rotation, will not fall, will not get stuck, giving you a comfortable sports experience 【Upgraded Exercise Hoop】: This weighted spring hoop is suitable for exercising various parts of the body including the waist, chest, legs, and back, 360 degree abdomen burning, quiet for indoor use, enjoy the fun of fitness 【Easy to Carry and Folding】: Designed for easy transport, this Waist Exercise Hoop can be twist and folded into a compact size, making it use anytime 【Widely Use】: 3 colors combination, very bright and unique, our abdominal fitness hoop is suitable for men and women, beginners and professionals, kids and teens, even seniors, at home, office, gym, backyard, indoor outdoor use Specification: Material: PVC Tube and Weight Metal   Size Chart:0.9kg Inner Diameter: 40cm/15.75inch, Thickness: 3.3cm/1.30inch, recommend for weight 30-45kg peope Package Includes: 1 Weighted Exercise Hoop