Wood Art Blocks - Rectangular Prism & Cylinder - 8 Piece Set Purchased at a home improvement store and used in a non-smoking room. They were used to hold audio equipment. - Adhesive sticker residue remains on one side (top or bottom in the photos). - Made of relatively hard wood, with a specific gravity of approximately 0.65-0.7. - Approximate dimensions of rectangular prisms: 48 x 48 x 100 (mm) - Approximate dimensions of cylinders: Diameter 47 x 100 (mm) Please consider this item as used, and only purchase if you understand its condition.