Easy to install:Use a dental disc tool wrench to fix the female disc nail from one side of the straight groove,and use a hex wrench to remove the locking disc nail from the other side of the male nail.
Excellent Craftsmanship:Integrated cutting, smooth and seamless surface treatment,strengthened tooth pattern treatment,uniform force distribution,firm and not easy to slip.
Multiple Choices:3 Size of bicycle disc screws,with various specifications to choose from,suitable for mountain bikes.