(16) 1 In. x 1 In. heavy-duty double-sided foam mounting squares. Used to wall-mount pictures and decorations. They adhere and conform to a variety of surfaces such as walls and ceramic tile (please note that this is a permanent tape and may cause damage if removed). Can hold up to 1 pound of weight (use 2 squares for each half-pound of weight to be held). The foam is approximately 1/16 In. thick.