Replacement pins are plastic-material and require no-stud for long-term use. Size: The-size of each replacement service pin is approx. 0.78x0.31inch. These repair pins allow for easy replacement of damaged shutter pins, . Package Included: You will receive 20Pcs Shutter Repair Pins, enough quantity for your various usage need. With , suitable for most colors and texture of shutter panels for added convenience.