Product Name: Lock Collar
Material: high quality metal material

2mm: 2 (ID) * 7 (OD) * 5 (Height)

3mm: 3 (ID) * 8 (OD) * 5 (Height)

4mm: 4 (ID) * 9 (OD) * 5 (Height)

5mm: 5 (ID) * 10 (OD) * 5 (Height)

6mm: 6 (ID) * 11 (OD) * 5 (Height)

7mm: 7 (ID) * 12 (OD) * 5 (Height)

8mm: 8 (ID) * 14 (OD) * 7 (Height)

10mm: 10(ID) * 15 (OD) * 6 (Height)

12mm: 12(ID) * 17 (OD) * 6(Height)

Package list:1PCS