Gridfinity bin (9x0.5) for Gridfinity ruler. This bin is different as it is for half grid sizing, allowing it to take up less space, or fill in that gap that is too small for a full size grid. 

One plate has a full size bin for printing on A1 and larger bed printers. A second plate has the bin split in half to fit on an A1 Mini bed. Despite being split, once on the grid they should lock in place.