3d printed screws for lew's spin casting reel. Both of mine came off and were lost. And without them, the knob handle kept coming off during casting retrievals. Design with straight knurl for finger tightening by hand. And just like the nylon on a keep-it nut, the plastic doesn't back out easily, snug fit.. 

included: color of choice

4- MXD replacement screws

know models that fit and verified by

Lew's Xfinity Speed Spin Spinning Fishing Reel

Mach 2 200 spinning reel; thanks uwbadger1997 for confirming

Mach crush spinning reel;  thanks trevomitchel_1 for confirming

Mp30 spinning reel; thanks 04armo for confirming