Stainless steel 24 - inch built - in kit * Transforms Sharp R405KS, R405KST, R408LS, R425LS, and R426LS countertop units to built - in units * Ad ds support and stability to microwave once installed * Blends microwave into the surrounding cabinetry for a more attractive façade * Product Dimensions ( H x D x W ): 12.1 3" x 20.3 8" x 2 4"