Material：Stainless Steel
1) It’s small diameter. Mini type.
2types:20 pcs in total
0.1mm (thick) X 4.5mm (OD)………..10pcs
0.15mm (thick) X 4.9mm (OD)……….10pcs
2) Small outer diameter is best use with ball bearings
Material：Stainless Steel
1) It’s small diameter. Mini type.
2types:20 pcs in total
0.1mm (thick) X 4.5mm (OD)………..10pcs
0.15mm (thick) X 4.9mm (OD)……….10pcs
2) Small outer diameter is best use with ball bearings