Image Item No. Description  30603  Brick, Modified 2 x 2 No Studs, Sloped with 6 Side Pistons Raised Catalog: Parts: Brick, Modified  30621  Brick, Modified 2 x 12 with 2 Side Pins and 2 End Pins, Technic Holes, and 4W Flared End Catalog: Parts: Brick, Modified  30645  Brick, Modified 12 x 12 Base Catalog: Parts: Brick, Modified