This is a set of snap hooks. Perfect for handmade projects and replacing parts. The inner width of the fabric loop is approximately 17mm for the 3-piece set and approximately 20mm for the antique-style set (7 pieces). These were left over from my parents' storage. The 3-piece set is new and unopened, while the antique-style set has been opened, but all the contents are unused. I inspected and removed any with verdigris. After confirming payment, I will wrap them in cushioning material and ship them via standard mail.