10 Compartments box with secure snap-lock lid for safe transport. Rock chip storage boxes are perfect for larger volume or coarser samples. Each compartment (1"x 2.25"x 1") has room for a good sized sample. Samples can be viewed under the microscope without removing them from the storage box. The Funnel Fits perfectly with our Rock Chip Trays. Easy filling of tray compartments without risk of contaminating other samples.