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  3941  Brick, Round 2 x 2 with Axle Hole Catalog: Parts: Brick, Round  79850  Brick, Round 4 x 4 Dome Top with 2 x 2 Recessed Center Catalog: Parts: Brick, Round