THIS WILL FIT MANY SIZE NIPPLES! HAHAHA! STOP IT NOW. ANYWAY....IF YOU DON'T KNOW HOW TO TRUE A WHEEL WE SUGGEST YOU DO NOT USE THIS. YOU CAN DO MORE HARM THAN GOOD. IF YA DO KNOW WHAT YOU ARE DOING THIS COULD VERY WELL BE YOUR BEST FRIEND. ***DOES NOT FIT 12G SPOKE NIPPLES**** CHROME ONLY! HAHAHAHA!