New extra nice from years ago- gives good looks to your bicycle-heavy built chrome steel with a red lens rear light--Has a wire that goes to some sort of a battery source-Note No Battery is Included--Super Nice 3 Wing Style body with a threaded stem and nut underneath to attach it to whatever you want it on--The total length of the light is about 3 12 inches long--I have no idea how it works, because, I never used it--Selling it as is--call three one eight two five three eight two two eight or