Original key chain made with acrylic plate using a high performance laser engraver machine for commercial use. Product Size: Height 0.8 x Width 2.0 x Thickness 0.1 inches (2 x 5 x 0.3 cm). Material: Acrylic. Hanging Hardware: Double ring (single-sided engraving) *This product is made of acrylic, so it does not cause water to get wet from rain.