Material: METAL . Flush mounting tip allows items to mount flush to the wall • Efficient wire-form design transfers the object weight from hole to wall, allowing 10 lbs to hang per hook • EZ self boring tip requires no tools- just push, twist, and insert • Made of super strong spring steel • No wall stud is required so you can hang your pictures exactly where you want them • Self locking mechanism keeps the hook secure to wall • Unique tilt back top directs the tip of the hook away from backing material, minimizing damage to picture backing • Galvanized zinc coating provides rich silver finish and prevents corrosion