Image Item No. Description  68013  Cylinder Half 1 x 2 x 1 Catalog: Parts: Cylinder  49737  Cylinder Tube, Curved 45 degrees Catalog: Parts: Cylinder  49736  Cylinder Tube, Straight Catalog: Parts: Cylinder  66787  Cylinder Warp Pipe 6 x 6 x 3 1/3 Catalog: Parts: Cylinder