If you are a user of elbow crutches, this revolutionary new crutch-Lock is a must for you. You know the problem, you put down your crutches....and over they topple, time and time again! Designed by an Occupational Therapist, the locks provide strong magnetic power to lock you two crutches together. No tools are required to fix in position so the locks cause no damage to the crutches and there is no need to drill or screw to fit, simply peel off the sticker and hold the lock on firmly for 30 seconds. Supplied in Pairs.