Most common material for nipples, brass nipples are generally nickel coated to ensure good corrosion resistance. Most wheel building robots can only work with brass nipples. Sapim offer brass nipples in silver and black.
Weight
64 pcs weight Polyax 12mm 60.48 g
64 pcs weight Polyax 14mm 68.19 g
64 pcs weight Polyax 16mm 76.42 g