PushPush Locking Bitbox 4x9

Printed with a 0.08mm layer height, but thats just for looks. id assume this would work anywhere between 0.16 to 0.08. Printed with Bambulab matte white and red. Requires one steel washer mounted on the inside of the outer casing, one m3 bolt that goes in the back of the case and a spring inside the cylinder. The bulky lock mechanism takes quite some space, and im going to be looking for a way to make it as tiny as possible. For now though it workssuprisingly well, and can take quite some force/