We are the industry leader for challenge coins for over 46 years. Each coin is cast out of high-grade zinc alloy, plated in gold, silver or copper, finished as high polish or antique and hand painted. Metal lines will be slightly raised above the enamel color areas. No extra charge for custom shapes. Standard thickness is 3.5mm. Includes designs on both sides. Call or email for 3D pricing. Complies with Prop 65. 1 3/4" W x 1/8" Thick