Wide application: they're utilized in many occasions, reminiscent of cling photos on the wall do-it-yourself frames, photos, drawing and art works or make some art works with these small items Fit for different sizes pictures,Each work requires no less than four sets frame flip buttons The frame flip button and screws are fabricated from iron, hard and durable, with paint plated on the surface, it is challenging for them to get rusty. Suitable for many picture frame. size:9 x 20mm Material:metal colour:black Package Contents: three hundred x Picture Turn Button 300 x Screws Only the above kit content, other merchandise aren't included. Note: Light taking pictures and diversified exhibits may cause the color of the article within the photograph a little varied from the real thing. The size allowed error is +/- 1-3cm.