This is a bag of 100 Sapim Secure Lock Brass Nipples. Features: Secure Lock prevents nipples from loosening via a mechanical means instead of a thread locking compound or paste Allows for truing and tensioning of wheel after wheel builds without any special procedures Polyax design features a round shape of the head that works like a ball-joint between the rim and nipple ensuring a better spoke/nipple line Specifications: Material: brass Size: 14g Length: 12mm Package: 100/bag