Engineered with hardened steel claws, these hangers securely lock into drywall at any location, Each hook can bear up to 40lb, being sturdy, reusable. Canvas Hanger for 18"x24" Artwork (40lbs Max) - Secure Wall Mounting with Post-Installation Angle Customization.. The bevel - designed steel claws can firmly embed into drywall without studs. Just place, push and hang. No extra tools are needed, saving much time. Our hooks are only suitable for drywall and plaster wall and should not be used on other types of walls. These reusable hangers can be easily removed with a screwdriver, leaving a pin - sized hole. Ideal for decorating and redecorating home or office spaces. Canvas Hangers