Arm Slimming Sleeves Made of high quality nylon and spandex in corrugated design, great arm compression to tone and shape saggy arms. Helps accelerate calorie burning and eliminate excess fat in the arms, helping people with obese arms to create slim arms. Product Features: The arm sleeves are suitable for women and girls who want to make their arms look slim. Suitable for any occasion, Arm shaped sleeves work better with sports and can be used for running, yoga, swimming, basketball, baseball, volleyball, etc. Recommended usage frequency is 4~6 hours daily, please not use it during bedtime. Value for money: 2 pairs arm sleeves(beige + black) Material: 78% Nylon+22% Spandex Color: Black+Beige Size:8x17cm/3.1x6.7" can stretch Approx. 20-35cm/7.8-13.7" MAX ARM CIRCUMFERENCE: 35cm/13.7", Only suitable for arm circumference 7.8 - 11.8 inches please confirm the size before purchase. NOTE: 1. We do not suggest this product if your arm circumference more than 12 inches. Only suitable for arm circumference 7.8 - 11.8 inches, please confirm the size before purchase. 2. Please kindly note that the arm shaper sleeves are reusable and washable. please not bleach them or use a dryer. 3. If any discomforts happen, please take them off. 4. Recommended usage frequency is 4~6 hours daily, please not use it during bedtime.