Image Item No. Description  24593  Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout Catalog: Parts: Cylinder  6259  Cylinder Half 2 x 4 x 4 Catalog: Parts: Cylinder  87926  Cylinder Half 3 x 6 x 6 with 1 x 2 Cutout Catalog: Parts: Cylinder  60373  Cylinder Quarter 3 x 3 x 5 with 2 Arch Tops Catalog: Parts: Cylinder  30562  Cylinder Quarter 4 x 4 x 6 Catalog: Parts: Cylinder