1、Anti Swelling: This post mastectomy arm sleeve help contract the muscles of the arm and pressurize the blood vessels to prevent the backflow of blood, thereby reducing swelling. 2、High Elasticity: This lymphedema compression arm sleeve adopts soft material and seamless knitting ensures high elasticity that provides great comfort. 3、Prevent Lymphedema: This post mastectomy compression sleeve can effectively prevent upper extremity lymphedema. It is suitable for people after breast cancer surgery. 4、Relieve Symptoms: This lymphedema arm sleeve can prevent the sequelae of upper extremity lymphedema and effectively relieve the symptoms of mild, moderate and severe lymphedema. 5、Shoulder Strap: This post mastectomy arm sleeve has shoulder strap, which can be fixed when wearing, not easy to slip off. Item Type: Post Mastectomy Arm Sleeve Material: Spandex Pressure Value: 23 to 32mmHg Product Size: Thickest Position of Arms: Approx. 34.5 to 41.5cm / 13.58 to 16.34in Elbow: Approx. 27 to 32cm / 10.63 to 12.60in Wrist: Approx. 20.5 to 22cm / 8.07 to 8.66in Applicable People: Upper Limb Lymphedema, Breast Cancer Surgery, Arm Swelling, Etc 1 x Post Mastectomy Arm Sleeve