For that ultimate reduction in rotation mass, or a custom wheelset with added bling. It is pretty well known that rotating mass offers the best performance per gram saved.Halo Alloy nipples are high quality forged aluminium alloy. Superlight race performance kit, that looks pretty funky too.(Not recommended for hardcore use, as aluminium nipples are not strong as regular brass. Fine for Road and XC racing - when used with 28+ number of spokes per wheel.)7075 Alloy 14g nipples.12mm precision CNC machined.Sold in packs of 50.Note: Use ONLY with quality 3.2 mm nipple key..