Set of 2 orange and yellow massage balls, perfect for stretching and recovery. 【Washable!】If they get dirty, you can wash them with water, keeping them clean at all times. You can also use them while sitting, so you can release fascia whenever you notice it in the office or at home. It helps with stiff shoulders, lower back pain, and stress relief. Target age: Adults Color: Orange x Yellow Diameter (mm): 6 cm Material: Rubber Product features: Waterproof Brand: Athletic Mart Material: Rubber Color: Orange x Yellow Target age: Adults Product weight: 0.3 kilograms - Colors: Orange, Yellow - Brand: ATHLETIC MART - Material: Plastic - Uses: Massage, stretching - Quantity: Set of 2 ATHLETIC MART Massage Balls, Set of 2, Lacrosse Balls, Game Balls, Stretch Balls, Fascia Release, Shoulders, Neck, Lower Back, Thighs, Calves, Foot Reflexology, Trigger Points, 2 Colors (Orange x Yellow) I purchased these about 2 years ago. I haven't used them much, but there is some dirt, so please check the photos. Thank you for looking.