This clamp is made to secure the Y-rods on an Anet-AM8, as the original ones are too high to be used with the Prusa I3-MK3 bed as it is lower than the original Anet bed. They are a drop-in-replacement, you can simply switch your existing clamps with these. It might be neccessary to sand them a bit on top. For me this was not the case but it might happen as there is little space between the rods and the carriage.

Have fun!

Notes:

Infill is 100% as there is not much space where it would affect the print.
Printed in PLA works but PETG or similar are a better choice here as they will not "flow" as much as PLA under load.