This vial tray was designed to be compact, for a glovebox where space is scarce, while allowing it to be handled with glovebox gloves. It holds eleven 10 mL vials of 15mm diameter, but it could be scaled to any size in your slicer. The center slots sit higher, so that those vials can be taken out a little easier when you're wearing large or thick gloves. One of the corner slots is shaped a little differently to help remember the tray's orientation.

Among there files, there is also a version where the slots are separate objects, to easily customize the tray in the slicer.