Material ecoFLEX/Stainless Steel Accents. Care Instructions Wipe with damp cloth. Made of ecoFLEX, a non-toxic recycled plastic-wood polymer composite material that won't warp, crack or splitStainless Steel Spindles and latch. Easy, no-tools assembly. For dogs up to 50lbs. Recommend for crate-trained pets onlyCrate is not chew proof.