TownLine Shelving Unit Kits May be Used Alone or Combined With Additional Shelves and Posts. Sturdy and economical, these chrome units come with four posts and post levelers, four shelves and plastic shelf clips. Add casters for mobility or S-hooks, shelves and additional posts for more storage. Bringing You Closer To Home is a registered trademark of Medline Industries, Inc. 18"W x 48"L x 64"D