Image Item No. Description By  23969  Panel 1 x 2 x 1 with Rounded Corners and 2 Sides Catalog: Parts: Panel 1  87552  Panel 1 x 2 x 2 with Side Supports - Hollow Studs Catalog: Parts: Panel 2  2362b  Panel 1 x 2 x 3 - Hollow Studs Catalog: Parts: Panel 3  87544  Panel 1 x 2 x 3 with Side Supports - Hollow Studs Catalog: Parts: Panel 290  60581  Panel 1 x 4 x 3 with Side Supports - Hollow Studs Catalog: Parts: Panel 1