The SKB vacuum formed rack made history when it was introduced in 1992. The very first molded rack provides a real professional alternative to the heavy wood racks. The SKB line of 19" stackable racks has received worldwide acclaim for durability, convenience and easy handling. Made of ultra high molecular weight polyethylene, they are less than half the weight of old fashioned wood racks and provide maximum protection. Protect your product with the original and don't be fooled by cheap copies.