1、It allows you to process multiple colors of diamonds at the same time, keeping the container and the diamond tray together. 2、They are stacked flexibly and do not take up much space, this makes you much easier to manage your diamonds. 3、Environmentally friendly material, high quality, flexible and durable, it is not easily broken. The tray holder with included drill pens, drill trays and diamond box, make your diamond painting work space-saving. And allow you work with different drills at the time, so you don't need to change colors that are similar or drop it. Features: It allows you to process multiple colors of diamonds at the same time, keeping the container and the diamond tray together. They are stacked flexibly and do not take up much space, this makes you much easier to manage your diamonds. Environmentally friendly material, high quality, flexible and durable, it is not easily broken. Easy to use, keep your drills from spilling or mixing. Especially suitable for paintings that have a ton of colors. Specifications: Material: Plastic Type: A, B, C (optional) Package Weight: A: 80g / 2.82ounces B: 90g / 3.17ounces C: 115g / 4.06ounces Package Size: A: 250 * 180 * 50mm / 9.84 * 7.09 * 1.97in B: 310 * 200 * 50mm / 12.2 * 7.87 * 1.07in C: 360 * 200 * 50mm / 14.17 * 7.87 * 1.07in Packing List: 1 * Tray Holder 3 * Drill Pens 8 * Green Trays 8 * Diamond Storage Boxes 1 * Tray Holder 3 * Drill Pens 8 * Green Trays 8 * Diamond Storage Boxes