Genuine GMK Stabilizers.
60% set usually need 4 x 2u + 1 x (6u, 6.25u, or 7u) for the space bar
These are decent stabilizers, but I would suggest you buy the Durock stabs instead if you are building with a PCB that supports screw-in stabilizers. They are much better than GMK stabs. However, if you are like me and your keyboard only supports plate-mounted stabs, then these are a pretty good choice. They are better than the stock stabilizers that came pre-installed with my GMMK keyboard. These stabs can be modded with the usual clipping and band-aid methods as well, making them a solid budget option.
I would like to see Kebo offering a wider variety of stabilizers. These were my only option for plate mounted stabs from this website at the time I purchased them.