Our Bike Plates are made from either solid polymer fiberglass - plastic, and are approximately 3/16 thick, or aluminum,. We offer a variety of sizes New Mini Plate Series -2x4, 2.5x4, and our all new 2.25 x 4 plate that comes with a black frame. Standard size bike plates- 3x6, ATV and Motorcycle Plates- 4x7 and Car Tag Size- 6x12. (only 3x6 and 6x12 are offered in plastic - all sizes are offered in aluminum). Plates may have 2 top round holes or 4 slot holes (2 on top and 2 on bottom) for application. The 2 hole 3x6 and 4x7 plates have a UV coating. The 4 hole plates are high gloss. All Plates are Printed in full color. with no set up charges!