~Electric Sound Brick 4 x 4 x 1.667 Bottom
Electric Sound Brick 4 x 4 x 1.667 with Medium Lavender Bottom and Rubber White Button Pattern
Electric Sound Brick 4 x 4 x 1.667 with Dark Bluish Grey Bottom and Rubber White Button Pattern
Electric Sound Brick 4 x 4 x 1.667 with Yellow Bottom and Rubber White Button Pattern