These two boxes are made with our inert, unbuffered corrugated polypropylene which is ideal for the storage of archaeological artifacts. Both sizes fit well on standard storage shelves. The 23.75" box fits on 24" shelves, and the 15" box fits two deep on 30" or 36" shelves. The boxes come with six piece partitions with extra slots which can be used to divide the box into numerous different configurations. Hand Holes are located in the box bottom for ease of use. The hand holes only penetrate the outer two panels of the triple panel ends so that the inside of the box is not exposed to the openings. Inert Artifacts Storage Box with Partitions - 15" x 12.5" x 6.25" $20.70, 3/$59.10, 6/$113.40, 12/$214.80, 24/$409.20 Inert Artifacts Storage Box with Partitions - 23.75" x 12.5" x 6.25" $25.60, 3/$73.05, 6/$139.20, 12/$266.40, 24/$495.60