2.5mm Thick Stainless Steel Spring Bar Watch Parts 

Body tube diameter: 2.5mm

Please note that the 17mm 19mm 22mm 24mm 28mm means the length after the 2 ends of head are fully compressed, not the natural length when the spring bar stretches

24mm 28mm 30mm is with step type flange(please see the photos)

For buyers who don't understand how to use it, please be cautious to buy.

Package includes: 2 pieces * spring bar