• Shimano MTB/Road BB-UN72 English-Thread Cartridge Sealed Bearing Bottom bracket. Out of box. 
• Square taper axle.
• English threads, fits 68mm bb shells, double Road/MTB cranks and has a 115mm axle.
• Made in Japan quality from 2002.
• 9.3oz./263 grams.
• BB481.
• FREE shipping in the USA.