Command 20 lb XL Heavyweight Picture Hanging Strips 16 Pairs (32 Command Strips), Damage Free Hanging Picture Hangers, Heavy Duty Wall Hanging Strips for Home Decor, White Adhesive StripsBrand: Command Color: White Features: MAXIMUM FRAME SIZE 24 X 36 INCHES: One package includes sixteen pairs (eight strips total) of the Command 20 lb X Large Heavyweight Picture Hanging Strips; four wall adhesive strip pairs (eight strips) holds 20 pounds; maximum frame of 24 x 36 inches WORKS ON A VARIETY OF SMOOTH SURFACES: X large wall hanging strips bond to a variety of smooth surfaces that include painted walls, painted cinderblock and concrete