Image Item No. Description  85941  Cylinder Half 2 x 4 x 5 with 1 x 2 Cutout Catalog: Parts: Cylinder  67950  Cylinder Half 3 x 6 x 6 Closed on Top with 2 Studs Catalog: Parts: Cylinder  87926  Cylinder Half 3 x 6 x 6 with 1 x 2 Cutout Catalog: Parts: Cylinder  61287  Cylinder Hemisphere 2 x 2 with Cutout Catalog: Parts: Cylinder  86500  Cylinder Hemisphere 4 x 4 Catalog: Parts: Cylinder  20455  Cylinder Hemisphere 9 x 4 x 7 with 4 Studs on Top Catalog: Parts: Cylinder  30562  Cylinder Quarter 4 x 4 x 6 Catalog: Parts: Cylinder