Cardboard scratchers are durable but anything being clawed at every day will need to be replaced eventually. Do not worry, refill boards are available to extend the life of your TRIXIE Race & Scratch activity track! Made of corrugated cardboard, it’s plenty durable against daily claw sharpening, however, when it is worn out, you can order a scratcher refill, so your cat can enjoy all the clawing for months! I am struggling with this... a little repetitive.... this is a weak attempt ... but you can put your LeeAnna glow on it! Although these cardboard scratchers are durable against daily claw sharpening, all clawed and scratched things eventually will need to be renewed. Luckily, refill boards are available to extend the life of your TRIXIE Race & Scratch activity track, so your cat can enjoy continuous clawing! Made of corrugated cardboard, safe for your pet, and saves your carpet and couches.