Thin 1MM:Size: 12*10*1mm
Packing list: 10PCS Screws Washer
Thick 2MM:Size: 11.8mm*10*2mm
Quantity: 10pcs
Material: Aluminum
Thin 1MM:
Application: double disc to single disc
For: If you have a two chainring chainring, you will need to change it to a single chainring. You will need to add a washer to the sprocket screw to secure the sprocket.
Thick 2MM:
For: When installing a single-disc disc with a double-disc screw, the male screw will be too long, so that the wrench cannot lock the nut, and the washer can solve this problem.
