Notice:
Dear buyer friend, thank you very much for your purchase.
No. 20, No. 21, No. 22, No. 23 blade can only be used for No. 4 handle, not for No. 3 and No. 7 handles.
10 pc 20#--23# Carbon Steel Surgical Scalpel Blades + 1pc 4# Handle Scalpel DIY Cutting Tool PCB Repair Animal Surgical Knife