Description: The frame turn button fasteners are made of plastic, hard and durable, frame fasteners is 1.2 cm in length, 1 cm in width, 0.4cm holes, suitable for small pictures or photos The feature and function of this plastic accessory is to fasten the back circular frame through screws. Play the role of the lock back ,at the same time, it is convenient to replace the painting core.Fit for small or large pictures, homemade frames, photos, drawing and art works. Wide application: You can use this set of frame fasteners turn button for many different uses, such as some pictures, photos, drawing and posters on the wall or make some art works with these small items. No need of wasting time to search other tools, these tools are enough to your handmade picture frames on to wherever you want to fixation. Specification: Material: Plastic Color : Black Size Chart: Size (L x W x Hole ): Approx. 1.2 x 1 x 0.4 cm / 0.47 x 0.39 x 0.16 inch Package Includes: 100 Pieces Picture Frame Fasteners(4 Pack) : Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.