Image | Item No. | Description |
| 3062 | Brick, Round 1 x 1 Catalog: Parts: Brick, Round |
| 3062a | Brick, Round 1 x 1 - Solid Stud, Bottom Lip Catalog: Parts: Brick, Round |
| 4588 | Brick, Round 1 x 1 with Fins Catalog: Parts: Brick, Round |
| 553 | Brick, Round 2 x 2 Dome Top Catalog: Parts: Brick, Round |
| 553a | Brick, Round 2 x 2 Dome Top without Bottom Axle Holder Catalog: Parts: Brick, Round |
| 3941 | Brick, Round 2 x 2 with Axle Hole Catalog: Parts: Brick, Round |
| 30361c | Brick, Round 2 x 2 x 2 Robot Body - with Bottom Axle Holder x Shape + Orientation Catalog: Parts: Brick, Round |
| 30361a | Brick, Round 2 x 2 x 2 Robot Body - without Bottom Axle Holder Catalog: Parts: Brick, Round |
| 4591 | Brick, Round 2 x 2 x 2 with Fins Catalog: Parts: Brick, Round |
| 6222 | Brick, Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Catalog: Parts: Brick, Round |
| 3063 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch Catalog: Parts: Brick, Round |
| 2577 | Brick, Round Corner 4 x 4 Full Brick Catalog: Parts: Brick, Round |
| 33230 | Brick, Round Corner 16 x 16 Catalog: Parts: Brick, Round |