Image | Item No. | Description |
| 30361 | Brick, Round 2 x 2 x 2 Robot Body (Undetermined Type) X Catalog: Parts: Brick, Round |
1955 |
| 3062old | Brick, Round 1 x 1 - Solid Stud, No Bottom Lip Catalog: Parts: Brick, Round |
| 3063 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch Catalog: Parts: Brick, Round |
| 3063a | Brick, Round Corner 2 x 2 Macaroni without Stud Notch Catalog: Parts: Brick, Round |
| x1042a | Brick, Round Corner 4 x 2 Macaroni Double without Stud Notches Catalog: Parts: Brick, Round |
| x1042b | Brick, Round Corner 4 x 2 Macaroni Double with Stud Notches Catalog: Parts: Brick, Round |
1963 |
| 3062a | Brick, Round 1 x 1 - Solid Stud, Bottom Lip Catalog: Parts: Brick, Round |
1976 |
| 3062 | Brick, Round 1 x 1 Catalog: Parts: Brick, Round |
1979 |
| 3941 | Brick, Round 2 x 2 with Axle Hole Catalog: Parts: Brick, Round |
1984 |
| 4588 | Brick, Round 1 x 1 with Fins Catalog: Parts: Brick, Round |
| 4591 | Brick, Round 2 x 2 x 2 with Fins Catalog: Parts: Brick, Round |
1990 |
| 2577 | Brick, Round Corner 4 x 4 Full Brick Catalog: Parts: Brick, Round |
1994 |
| 6162 | Brick, Round Corner 12 x 12 Catalog: Parts: Brick, Round |
1995 |
| 6222 | Brick, Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Catalog: Parts: Brick, Round |
| 71075 | Brick, Round 1 x 1 x 1 2/3 Catalog: Parts: Brick, Round |
| 71076 | Brick, Round 1 x 1 d. 90 degrees Elbow Macaroni - No Stud - Type 1 Catalog: Parts: Brick, Round |
1998 |
| 30151 | Brick, Round 2 x 2 x 1 2/3 Dome Top Catalog: Parts: Brick, Round |
| x12 | Brick, Round 1 x 1 with Ball (Finial) Catalog: Parts: Brick, Round |
1999 |
| 553a | Brick, Round 2 x 2 Dome Top without Bottom Axle Holder Catalog: Parts: Brick, Round |
| 33230 | Brick, Round Corner 16 x 16 Catalog: Parts: Brick, Round |
2000 |
| 30361a | Brick, Round 2 x 2 x 2 Robot Body - without Bottom Axle Holder Catalog: Parts: Brick, Round |
| 33286 | Brick, Round 1 x 1 x 2/3 with Flower Edge (4 Knobs on Base) Catalog: Parts: Brick, Round |
| 33287 | Brick, Round 2 x 2 x 2 Dome Top with Cross Cut Slots Catalog: Parts: Brick, Round |
2002 |
| 553 | Brick, Round 2 x 2 Dome Top Catalog: Parts: Brick, Round |
| 30361b | Brick, Round 2 x 2 x 2 Robot Body - with Bottom Axle Holder x Shape x Orientation Catalog: Parts: Brick, Round |
2003 |
| 30361c | Brick, Round 2 x 2 x 2 Robot Body - with Bottom Axle Holder x Shape + Orientation Catalog: Parts: Brick, Round |
2004 |
| 47376 | Brick, Round Corner 12 x 12 with 3 Support Pegs Catalog: Parts: Brick, Round |
| 47974 | Brick, Round Corner 4 x 8 Full Brick Double Catalog: Parts: Brick, Round |
| 47974c01 | Brick, Round Corner 4 x 8 Full Brick Double with 2 Fixed Rotatable Friction Pins Catalog: Parts: Brick, Round |
| 48092 | Brick, Round Corner 4 x 4 Macaroni Wide with 3 Studs Catalog: Parts: Brick, Round |
2007 |
| 57587 | Brick, Round 7 x 7 x 4 Dome Top Catalog: Parts: Brick, Round |
| 58846 | Brick, Round Corner 10 x 10 with Slope 33 Edge, Axle Hole, Facet Cutout Catalog: Parts: Brick, Round |
2008 |
| 85080 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside Catalog: Parts: Brick, Round |
2010 |
| 87081 | Brick, Round 4 x 4 with Hole Catalog: Parts: Brick, Round |
| 87559 | Brick, Round Corner 6 x 6 x 2 Catalog: Parts: Brick, Round |
| 88293 | Brick, Round Corner 3 x 3 x 2 Dome Top Catalog: Parts: Brick, Round |
2011 |
| 92947 | Brick, Round 2 x 2 with Axle Hole and Grille / Fluted Profile Catalog: Parts: Brick, Round |
| 95188 | Brick, Round Corner 6 x 6 with Slope 33 Edge, Facet Cutout Catalog: Parts: Brick, Round |
2014 |
| 15395 | Brick, Round 2 x 2 Dome Bottom Catalog: Parts: Brick, Round |
2015 |
| 17485 | Brick, Round 2 x 2 with Pin Holes Catalog: Parts: Brick, Round |
| 18897 | Brick, Round 6 x 6 with 4 Side Pin Holes and Center Hole Catalog: Parts: Brick, Round |
2016 |
| 24599 | Brick, Round Corner 5 x 5 x 1 without Studs Catalog: Parts: Brick, Round |
| 24947 | Brick, Round 2 x 2 Dome Bottom with Studs Catalog: Parts: Brick, Round |
| 25214 | Brick, Round 1 x 1 d. 90 degrees Elbow Macaroni - No Stud - Type 2 - Axle Hole Catalog: Parts: Brick, Round |
2017 |
| 27266 | Brick, Round 2 x 2 with Spikes and Axle Hole Catalog: Parts: Brick, Round |
2019 |
| 20952 | Brick, Round 1 1/2 x 1 1/2 x 2/3 Dome Top Catalog: Parts: Brick, Round |
| 20953 | Brick, Round 2 x 2 Sphere with Stud / Robot Body Catalog: Parts: Brick, Round |
| 49308 | Brick, Round 3 x 3 x 1 1/3 Dome Top - Open Stud Catalog: Parts: Brick, Round |
| 49612 | Brick, Round Corner 4 x 4 x 2 2/3 Dome Top Catalog: Parts: Brick, Round |
2020 |
| 65473 | Brick, Round 2 x 2 D. 45 degrees Elbow (25.5mm Standing Height) Catalog: Parts: Brick, Round |