A:Â Curious Decorator, The hangers do go into the wall and will put small nail holes upon installation. These can be covered and painted over when removed. Best, Customer Care Team
A:Â Curious Decorator, Thank you for your question. The Liberty 24pc Picture Hanging Kit Decorative Hooks will leave small holes where the nail is inserted into the wall. Best, Customer Care Team
A:Â Sanjeeb, Thank you for your question. The nails that come with the Arrow 24pc Picture Hanging Kit Decorative Hooks are intended for wood studs. Best, Customer Care Team
A:Â Sanjeeb, Thank you for your question. The nails that come with the Arrow 24pc Picture Hanging Kit Decorative Hooks are intended for wood studs. Best, Customer Care Team
A:Â Hugh, Thank you for your question. The Arrow 24pc Picture Hanging Kit Decorative Hooks are intended to be put into studs. Best, Customer Care Team
A:Â Hugh, Thank you for your question. The Arrow 24pc Picture Hanging Kit Decorative Hooks are intended to be put into studs. Best, Customer Care Team
A:Â Elizabeth, Thank you for your question. We have not tested this, so we would not recommend this for your project. Best, Stephanie Customer Care Team
A:Â John, thank you for your question. The maximum weight supported by these hooks is 75 lbs. Best, Customer Care Team
A:Â Kelsey, Thank you for your question. This is best used for dry wall or wood blocking. Nailing into cinder block could cause it to crack. I would advise using anchors and screws depending on what you are hanging. Best, Customer Care Team
A:Â KC, Thank you for your question. This product includes three different sizes of hangers including four #50, six #30 and six #20. There are six 17 gauge x.75" nails, six 16 gauge x 1" nails, four 13 gauge x 1-1/2" nails and two 12 gauge x 2" nails. It also includes two 75lb hangers and six 10lb hangers. Best, Customer Care Team
A:Â Dini, Thank you for your question. This product comes with a couple different sized nails. Those are 0.75", 1", 1-1/2" and 2". Best, Customer Care Team