The strong elasticity of these sleeves means they can stretch from 20 - 35 cm/7.8 - 13.7 inches, making them suitable for a wide range of body types. And with their minimalist design, they're easy to wear under your favorite tops and dresses. Whether you're hitting the gym, taking a yoga class, or playing sports with friends, our arm shapers are up to the task. For best results, wear them for 4-6 hours per day during active hours. Ideal for women and girls who want to achieve a slimmer and more toned look, these sleeves are versatile, comfortable, and effective. Specification: Material: Nylon, Spandex Color: Black Size: 8" x 3.1" (20.5 x 8cm) Package includes: 2 Pairs x Slimming Arm Sleeves