Arm tightening support for upper arms, fits sizes M-L. - Product Name: NINO MAKE SLIM - Size: M-L (Upper arm circumference: 26-32cm, Shoulder width: 39-46cm) - Material: 90% Nylon, 10% Polyurethane - Features: Upper arm support Please purchase if you don't mind that it has been stored at home. I will be unavailable from the 8th to the 12th, so shipping will be after the 13th. Thank you.