TRT Woodworks handcrafted resin art skulls embedded with brass or nickel spent casings. Our skulls have minimal visual imperfections which contains either 223, 45 ACP or 9mm brass/nickel casings. Each skull is unique and will have variances. The image does not depict the EXACT skull you will receive. Please note the clarity/reflection in daylight pictures provided in my listings. Very appealing to those into firearm culture, military aesthetics, or unique handmade gifts. One of a kind gift for your boss, boyfriend, fiancé, husband, or grandfather who enjoys the outdoors. Can be used as decor or a paperweight. The ultimate Birthday, Father's Day, Retirement, Valentine's day gift for any firearm enthusiast! My epoxy skulls are made from high quality commercial grade epoxy resin. Our resin is BPA free and food safe and can be used on coasters, cutting boards, tumblers, and other kitchen items. High quality, non-toxic, art resin with zero VOCs and odor free is always used. All epoxy resin may yellow over time, to avoid this please limit direct sunlight exposure. Resin Care: TO CLEAN, USE A SOFT CLEAN TOWEL DO NOT SOAK NOT MICROWAVE SAFE NOT DISHWASHER SAFE AVOID EXTREME HEAT (120F or 50C MAX) Specs for skulls Width: 2.6 inches Height: 3.5 inches Depth: 4 inches