Ran out of space in your favorite scrapbook or photo album? Don't buy a new one – just expand it with these handy extension screws! This pack comes with 40 pieces total (the posts and screws you need). They are M5 size (5mm diameter) and 12mm long, made from durable, silver-colored copper that's rust-resistant. Using them is simple: unscrew the existing posts in your album's binding, add one (or more) of these extension posts in between, and screw it all back together. This adds crucial extra space between the covers, allowing you to add many more pages of memories. They're also super useful for other DIY projects like binding leather crafts, documents, menus, or swatch books. The installation is easy with a flat-head screwdriver or even a coin. A must-have for serious scrapbookers and crafters. Keep adding to your album without limits!