we have 10 types of timing pulleys;

1. 20tooth width 6mm bore 5mm;

2. 20tooth width 6mm bore 6.35mm;

3. 20tooth width 6mm bore 8mm;

4. 20tooth width 6mm bore 4mm;

5. 16tooth width 6mm bore 5mm;

6. 16tooth width 6mm bore 6mm;

7. 20tooth width 10mm bore 6.35mm;

8. 20tooth width 10mm bore 8mm;

9. 20tooth width 6mm bore 5mm;

10. 16tooth width 6mm bore 5mm;

please make sure what is type of your choice, check it again when you pay it,

(T: teeth        W: width        B: bore)