【Product】General Medical Device Lymph Support Socks, M-L size, Gray Line, Over-the-knee socks 【Description】 This product applies concentric compression to the wearing area through its elasticity, and has a structure that reduces the compression pressure from the peripheral to the central area. These are medical elastic stockings designed to reduce or prevent stagnation of venous blood and lymph in the lower limbs, and to promote venous return. They have a function to apply compression gradually from the periphery to the center. S-M size Ankle circumference: 22-24cm Calf circumference: 30-36cm Materials: Rayon, Polyester, Nylon, Polyurethane, Silk Compression Pressure Calf: 21hpa Ankle: 27hpa 【Shipping】 ▪︎ Shipping will take 1-3 days after payment. (Shipping operations are not conducted on weekends and holidays. Depending on the product, it may take several days to ship. In that case, we will contact you.) 【Other】 ▪︎ Shipping will be in simple packaging.