| Image | Item No. | Description | By |
| 3062 | Brick, Round 1 x 1
Catalog: Parts: Brick, Round | 107 |
| 3062a | Brick, Round 1 x 1 - Solid Stud, Bottom Lip
Catalog: Parts: Brick, Round | 48 |
| 3062old | Brick, Round 1 x 1 - Solid Stud, No Bottom Lip
Catalog: Parts: Brick, Round | 3 |
| 20952 | Brick, Round 1 1/2 x 1 1/2 x 2/3 Dome Top
Catalog: Parts: Brick, Round | 1 |
| 25214 | Brick, Round 1 x 1 d. 90 degrees Elbow Macaroni - No Stud - Type 2 - Axle Hole
Catalog: Parts: Brick, Round | 15 |
| 4588 | Brick, Round 1 x 1 with Fins
Catalog: Parts: Brick, Round | 130 |
| 3386 | Brick, Round 1 x 1 x 2/3 Half Circle Extended with Side Stud
Catalog: Parts: Brick, Round | 1 |
| 33286 | Brick, Round 1 x 1 x 2/3 with Flower Edge (4 Knobs on Base)
Catalog: Parts: Brick, Round | 1 |
| 553 | Brick, Round 2 x 2 Dome Top
Catalog: Parts: Brick, Round | 113 |
| 553a | Brick, Round 2 x 2 Dome Top without Bottom Axle Holder
Catalog: Parts: Brick, Round | 30 |
| 20953 | Brick, Round 2 x 2 Sphere with Stud / Robot Body
Catalog: Parts: Brick, Round | 1 |
| 3941 | Brick, Round 2 x 2 with Axle Hole
Catalog: Parts: Brick, Round | 53 |
| 17485 | Brick, Round 2 x 2 with Pin Holes
Catalog: Parts: Brick, Round | 1 |
| 30361c | Brick, Round 2 x 2 x 2 Robot Body - with Bottom Axle Holder x Shape + Orientation
Catalog: Parts: Brick, Round | 1 |
| 4591 | Brick, Round 2 x 2 x 2 with Fins
Catalog: Parts: Brick, Round | 1 |
| 87081 | Brick, Round 4 x 4 with Hole
Catalog: Parts: Brick, Round | 1 |
| 3063 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch
Catalog: Parts: Brick, Round | 9 |
| 85080 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside
Catalog: Parts: Brick, Round | 271 |
| 3063a | Brick, Round Corner 2 x 2 Macaroni without Stud Notch
Catalog: Parts: Brick, Round | 15 |
| 88293 | Brick, Round Corner 3 x 3 x 2 Dome Top
Catalog: Parts: Brick, Round | 200 |
| 48092 | Brick, Round Corner 4 x 4 Macaroni Wide with 3 Studs
Catalog: Parts: Brick, Round | 372 |
| 49612 | Brick, Round Corner 4 x 4 x 2 2/3 Dome Top
Catalog: Parts: Brick, Round | 1 |
| 24599 | Brick, Round Corner 5 x 5 x 1 without Studs
Catalog: Parts: Brick, Round | 12 |
| 95188 | Brick, Round Corner 6 x 6 with Slope 33 Edge, Facet Cutout
Catalog: Parts: Brick, Round | 45 |
| 87559 | Brick, Round Corner 6 x 6 x 2
Catalog: Parts: Brick, Round | 182 |