Abstract: A pneumatic cuff or sleeve for detecting blood pressure in a limb of a body is provided with a locking assembly which allows the cuff to be easily affixed around the limb without shifting the cuff thereon. The locking assembly utilizes a tab member, formed at one end of the cuff, and an aperture formed at the other end of the cuff. The aperture is slightly spaced from the opposite end of the cuff to allow the opposite end to be grasped. In use, the cuff is placed around the limb in the proper measuring area and tab member is threaded through the aperture. The threaded tab member and the opposite end of the cuff are pulled in opposite directions to tighten the cuff without circumferentially shifting the cuff from the measuring area. The tab and the opposite end of the cuff have pressure sensitive material thereon which mates with the outside of the cuff to retain the tab and the end of the cuff thereby retaining the cuff around the limb.