20 Lb XL Heavyweight Picture Hanging Strips, Damage Free Hanging Picture Hangers, Heavy Duty Wall Hanging Strips for Living Spaces, 20 Black Adhesive Strip Pairs, PH217BLK-10NA

WORKS ON A VARIETY OF SMOOTH SURFACES: X-large wall hanging strips adhere to a range of smooth surfaces, including painted walls, painted cinderblock, and concrete surfaces, for damage-free hanging.
SURFACE PREP: Clean the desired surface with rubbing alcohol to remove grime and dust, allowing the no-damage wall hangers to bond properly; the indoor temperature must be between 50 degrees Fahrenheit and 105 degrees Fahrenheit.
USAGE TIPS: Wait seven days after painting before using the Picture Hangers to let the paint cure; avoid hanging over beds or on wallpaper; do not use the wall hanging strips to support valuable items.
EASY CLEAN REMOVAL: Gently hold the top of the removable adhesive strips and slowly pull straight down toward the floor to remove them without damaging walls or surfaces.
STRONG DAMAGE-FREE HANGING STRIPS: Our STRONGEST HOLD features 40% more adhesive holding power compared to Large Picture Hanging Strips, ideal for hanging large wall art, big mirrors, wall clocks, heavy-duty picture frames, and more