The frame turn button and screws are made of iron, hard and , with paint plated on the , it is difficult for them to get rusty. Fit for different sizes pictures,Each work requires at least 4 sets frame turn buttons Wide application: they are applied in many occasions, such as hang pictures homemade frames, photos, drawing and art works or make some art works with these small items Suitable for most picture frame., Weight: 0.44533376924 Pounds, Manufacturer: Hipzeepo