OPTIMAL PROTECTION: High-density honeycomb EVA football arm sleeves padding to alleviate injuries from falls or impacts, with a separate granular design for a more intimate fit that does not restrict the freedom of movement of the elbow.ANTI-SLIP DESIGN: Double-layer wavy silicone strip to prevent elbow pads from slipping during exercise. This knee brace is suitable for soccer, basketball, volleyball, tennis, golf, baseball, weightlifting, etc.SPECIFICATIONS: Material (Nylon 87% Spandex 13%) & Honeycomb EVA foam pads, Color (Black), Quantity (2 pcs/1 set).REFERENCE SIZE: M (arm circumference: 9.4-10.2 in/24-26cm, length: 15.4in/39cm), L (arm circumference: 10.2-11.0in/26-28cm, length: 16.1in/41cm).WASHING INSTRUCTIONS: Hand wash in cold water and tumble dry recommended. Please do not machine wash to prevent damage to the sponge structure and reduce the service life.