The links are unremovable, NOT for extend

For replace if your watch band broke

WATCH BAND SOLID LINKS FOR OMEGA SPEEDMASTER MOON WATCH 20MM STAINLESS STEEL

It has a brushed (matte ) finish & small links polished

Thickness: 3.7mm

This link will fit band which has 22mm lugs and takes 20mm links at Clasp end.

22mm tapered down to 20mm and comes with 2 Push pins.