These holders are easy to work with and have the right tension for holding stitches securely so that it will not come loose accidentally. There are four sizes to choose from, depending upon how many stitches need to be held together. The larger the size, the more stitches can be held on the holder. Details: Silver Includes 4 assorted sizes Aluminum Imported Contents: 2'' (5 cm) holder 2.75'' (7.5 cm) holder 5.75'' (12 cm) holder 6.25'' (16) holder