Size for reference
2ss(1.2mm) 1440pcs/bag
3ss(1.3-1.5)mm 1440pcs/bsg
4ss ( 1.5 - 1.6 )mm  1440pcs/bag
5ss ( 1.7 - 1.8 )mm  1440pcs/bag
6ss ( 1.9 - 2.0 )mm  1440pcs/bag
8ss ( 2.3 - 2.4 )mm  1440pcs/bag
10ss ( 2.7 - 2.9 )mm 1440pcs/bag
12ss ( 3.0 - 3.2 )mm 1440pcs/bag
16ss ( 3.8 - 4.0 )mm 1440pcs/bag
20ss ( 4.6 - 4.8 )mm 1440pcs/bag
30ss ( 6.3 - 6.5 )mm 288pcs/bag
34ss ( 7.2 - 7.4 )mm 288pcs/bag
40ss ( 8.4 - 8.7 )mm 144pcs/bag
45ss ( 9.2 - 9.5 )mm 144pcs/bag
50ss ( 9.9 - 10.1mm ) 144pcs/bag