These trays are designed to fit in The Roz Box, The Roz Box 2, The Roz Bag or the ArtBin® Pastel 3 Box. Each stackable tray features a center grip for easy pickup. Dimensions: 16-3/4"(w) × 6-7/8"(d) × 7/8"(h) Slot dimensions: 7/8"(w) × 3-1/4"(d) × 3/4"(h). Each tray holds 34 pastels