These high quality terraria features angle iron construction with safety clips on all corners, Like other Jewel products they are constructed of durable welded angle iron finished with durable baked-on finish and top grade extra-strength glass sides, 18"" Size, Ideal for small plants and limited space, Dimensions: 18""L x 10""W x 15""H 20"" Size (shown), This popular unit is perfect for a variety of plant study, Dimensions: 20""L x 12""W x 18""H Both the top glass and front slanted glass are removable and have ground edges to ensure safe handling, 24"" Size, Our largest size designed for professional botanical use, Dimensions: 24""L x 14""W x 21""H, American Educational Products have a lead ship time of 21 days, SKU: AMED1472