1. What you'll get: You will receive 4 pairs of arm slimming sleeves, which is enough for you to alternate; Color: as shown in the picture. 2. Comfortable material: This fitness arm shaping sleeve is made of nylon and spandex. It is soft and elastic, comfortable to wear, suitable for different people, and can smoothly fit under clothes, making your arms look slimmer. 3. Size information: The arm sleeve is about 24 cm (9.45 inches) long and about 8.8 cm (3.46 inches) wide, and can be stretched to 20 - 35 cm (7.8 - 13.7 inches). It has strong elasticity and is suitable for different people. 4. Suitable population: This arm sleeve is suitable for women and girls who want to make their arms look slimmer. It is recommended to wear it for about 4 to 6 hours a day and do not use it while sleeping; Please carefully check the picture and size before purchasing. 5. Wide range of application scenarios: This arm slimming shaping sleeve can be used when you exercise, such as running, swimming, doing yoga, playing basketball, baseball, volleyball, etc.; Note: The fabric is elastic, but do not over - stretch it, otherwise it is easy to damage.