Comprising a 60 mil PVC plastic core with a durable 30 mil thick epoxy resin covering the front and back, our 120 mil thick Pool Pass Key Tags are rather sturdy. The tags are digitally printed in full color and protected from liquid splashes, solvents, fading, discoloration, and abrasions owing to the epoxy resin layer. Fitted with a key chain and key ring, these vibrant Pool Pass Tags are built to last for years under normal conditions.