Image Item No. Description  49949  Cylinder 6 x 10 x 4 1/3 with Open Sides and Pin Holes Catalog: Parts: Cylinder  68013  Cylinder Half 1 x 2 x 1 Catalog: Parts: Cylinder  24593  Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout Catalog: Parts: Cylinder  24593  Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout Catalog: Parts: Cylinder  30987  Cylinder Quarter 2 x 2 x 5 with 1 x 1 Cutout Catalog: Parts: Cylinder