20 Pack, 50 LB, Professional Brass Finished Picture Hangers, Used Professionally In Museums & Galleries, Classic Look To & Professional Galleria, Designed With An Elbow To Make For A Stronger More Secure Hang, Comes With Professional Blue Steel Nail That Leaves Only A Pinhole In Walls, Nails Are Reusable & Are Great For Drywall & Plaster Surfaces, Weight Ratings Are Based Off Of Installation Using A Stud.