The smart hula hoop offers a dual benefit of cardio and massage, increasing workout enjoyment and effectiveness. Ideal for both children and adults, it guarantees a comprehensive workout experience. Fits waist sizes from 76 cm to 111.5 cm with adjustable 12-16 elements. Includes a smart LCD screen to track time, calories and reps. Delivers a soothing massage effect with 360-degree movement springs. Ensures flexible rotation with high-quality PVC and stainless steel bearings. Offers easy installation and portability for convenient use anywhere. Transform your workout routine with this innovative hula hoop. Its adjustable design and smart features make it perfect for all levels. Improve your workout and get yours today. Specifications Material: PVC, ABS, PP, TPR Color: Green Waist adjustment: 76 cm - 111.5 cm Load weight: 400 g Belt adjustment: 20 cm - 38 cm Display functions: time, calories, reps Clamp: Comfortable and secure Bearings: Stainless steel ball bearings