Read more 10 km challenge medal Designs: Custom 10 km challenge medals design acceptable Artwork: Free proof for custom 10 km challenge medals Size: Custom size from 1.5inch-5 inch Material: Die struck steel/ Zinc alloy Plating: Gold/Silver/Brass/Antique Available. Colors: No Enamel/Soft enamel color/Hard enamel color Package: Each unit packed in Opp bag, gift box package available. Shipping: Delivered by DHL/UPS/FedEx/TNT express company Time: 7-12 days production time, 2-4 shipping time.