Abstract: In one aspect of the present invention, a razor has a handle, a razor cartridge, and an engaging mechanism having a first engaging member secured to the handle and a second engaging member secured to the razor cartridge. Each of the first and second engaging members has a surface and a structural pattern formed thereon. The structural pattern on the surface of the first engaging member is substantially complementary to the structural pattern on the surface of the second engaging member. As assembled, the surface of the first engaging member is in substantial contact with the surface of the second engaging member such that the structural pattern on the surface of the first engaging member and the structural pattern on the surface of the second engaging member are complementarily and mutually engaged so as to lock the first engaging member to the second engaging member, and the razor cartridge is aligned with the handle in an angle, ?.