Sapim Alloy and Brass Polyax Nipples 14G-R1/B

- 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\n- Aluminum: 7075-T6 aluminum, special coating on thread and nipple surface to further reduce corrosion and reduce friction between spoke/nipple and nipple/rim\n- Brass: black or nickel coated