28mm, 27mm, 26mm, 25mm, 24mm, 23mm, 22mm, 21mm, 20mm, 19mm, 18mm, 17mm, 16mm, 15mm, 14mm, 12mm. Holes: Oval big holes (2mm x 4mm) apply for buckle size equal or above 22mm. Other sizes have small holes (2mm circle).