Boraam 70011 Techny Collection Tobey Hollow Core Bookcase, Espresso Ready To Assemble construction (RTA): all tools are included making assembly easy as 1, 2, 3! Camlock construction; screw holes are not visible once assembled 9 cubicals; 3 shelves divided into 3 columns Each shelf can hold up to 70 pounds; over 900 pound total weight limit when weight is evenly disbursed Double V-cut method used when veneering; provides smooth rounded edges and prevents premature wear