Massage Tool Kits of 3 Pcs, Include 8 Wheels Massage Roller Body Arms Legs Massager, Palm Muscle Massager, Spiky Ball Sensory Training Ball Stress Reflexology Porcupine Sensory Ball 8 Wheels Rainbow Massage Roller Body Arms Legs Massager, material : ABS Plastic, Wheel Size(Each One) : 3.6 x 1.5cm(D*T); Total Size : 14.5 x 9.5 x 8cm (L*W*H), Weight:130g, for relieve and relaxed preessure. 4-Legged palm muscle massager Knobs, Scientific Design & Attractive Color - Fits naturally into the Palm,Legs with knobs angled ideally -Provide easy gliding for deeply relaxing massage,Hygienic and Washable - can also be used in conjunction with creams and oils. The knobs at each of its four points can be used in many ways to apply deep pressure to muscular trigger points, Smaller knobs provide deeper more intense pressure and the larger knobs provide broader gentler pressure 6cm spiky ball for hand massage body massage and stimulation,Made from EU approved phthalates free PVC,Safe to use.Designed to stimulate the blood circulation, massage muscles, improve circulation. Ideal for self-massage and convenient bring, great massage tool knits to have.