THIS IS A VINTAGE NEVER USED ITEM LATE FOUND IN A OLDER SCHWINN SHOP .THIS IS A LATE 1980S 1990S NOT MADE ANY MORE,,ITS A BMX / FREE STYLE GOOSE NECK / STEM,,VERY STRONG GOOD QUALITY,,,IT IS A STANDARD SIZE TO FIT SCHWINN BIKES AND OTHERS ,,,,THIS ITEM IS IN THE COLOR OF BLACK AND STAMPED 21.1 MM..STEEL STRONG,,ITS 8 INCH LONG OR SO AND IS COMP-LETE WITH LOCKING TIGHT BOLTS AND GOOESE NECK BOLT,,ITS COMPLETE READY TO GO.