Specifications: The roller and ball, which are designed with hard tips, can achieve muscle relaxation and myofascial release. You can use the massage ball and roller set to complement your yoga, pilates and gym workouts. It helps to stretch muscles, reduce pain, and can also improve blood circulation. Item Name: Body Exercise Set Material: EVA, Latex, TPR Features: Durable, Multifunctional, Convenient Size: Massage Stick: 16.5cm x 7cm/6.50" x 2.76" (Approx.) Diameter of Stab Ball: 6.5cm/2.56" (Approx.) Diameter of Round Ball: 8cm/3.15" (Approx.) Latex Ring: 50cm x 5cm x 0.05cm/19.69" x 1.97" x 0.02" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Massage Stick 1 x PVC Stab Ball 1 x EVA Ball 1 x Latex Ring 1 x Cloth Bag