3dRose I'm an Engineer Engineer Engineer I'm Good with Math Key Chains, Set of 2 (kc_171882_1) Made of heavy-duty durable plastic with high gloss finish^Available in sets of 2, 4 or 8^Dimensions: 2 3/8" W x 2 3/8" H x 3/8" D^Image printed on both sides of key chain.^Hardware included