Whether you are displaying your achievement trophies, creating a chic dessert display for an engagement party, or curating your altar crystal display, the 7Penn Black Acrylic Display Riser Set provides sophistication and class to your table display. Constructed from high gloss black acrylic, our 3 piece plastic display riser set adds varying heights when used individually or creates a tiered display when stacking the 7in (18cm), 9in (23cm) and 10in (25cm) square display lifters on top of each other. The varying sizes of these acrylic stackable risers nest inside of each other to quickly break down your display and store for future use. Use upside down as trays to contain smaller items such as candy, rocks, and favors. Wipe clean with a damp cloth as needed. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.