What kind of interior wall is this (old home)? : r/Oldhouses
About the Large Hardwall Plastic Hook • Hardwall Plastic hooks work on concrete, cement, cinder block, thin plaster over concrete, soft smooth brick, soft stone, and hardwood. • Surface of the wall must be smooth so the back surface of the hook is in full contact with the wall. • Maximum Weight 30 pounds • No anchors needed, nails are built into the hook - all you need is a hammer.
Hardwall Plastic Hook Large, 100 Pack ($0.38 Each)
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