When oven space is at a premium, this KOVOT 3-Tier Oven Rack saves the day. Place it on one half of an oven rack and bake several side dishes while the main dish cooks alongside. It also folds flat for convenient storage. It maximizes oven space for multiple roasting and baking tasks. Ideal for entertaining and preparing large batches of food and accommodates bakeware up to 4" high. Simple assembly direction included. Fits most ovens.