It is a treadmill security lock.
Fits for most treadmill.
Treadmill safety key:It can work easy and quick on most treadmills requiring a round treadmill safety key.
Strong Clip:It can easily clamp to any part of your clothing and it's strong to hold.
Size:Cord Length: 81cm,Diameter of magnet shell: 2.2cm,Diameter of magnet: 1.3cm.
Fits for most treadmill:Fit to a wide variety of treadmill brands.
Good Service:We will solve it well for you if you have any problem.