This premium spring bar graded box of five different styles of spring bars from double flange to single flange buckle type spring bars was made up with our best-selling sizes and types of spring bars in mind. The kit comes with a total of 320 spring bars.
Thin (1.50 mm) double flange sizes: 18 mm, and 20 mm
Regular (1.78 mm) double flange sizes: 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm and 24 mm
Fat (Generic Seiko 2.00mm) double flange sizes: 18 mm, 20 mm and 22 mm
Fat (Generic Seiko 2.50 mm) double flange sizes: 20 mm and 22 mm
For Diver Clasp (1.78 mm) single flange sizes: 18 mm, 20 mm, and 22 mm