Cedar Planks with a Resin River Design with Koi Fish swimming. Can be used as a tray, table decor, or as wall art. My resin designs are made at time of each order ensuring top quality, scratch, stain, and yellowing resistance, and overall excellence. However, I recommend allowing 30 days for compete curing of the resin before putting it into use. Do not place items hotter than 125°F on the cured surface or it may become distorted and discolored.