From Cocoknits -- 
"I try hard to elevate the perception of knitting in the wider world. So watching my knitting students count their rows with cheap-looking, colored plastic row counters over the years made me sad. 
I wanted a high-quality row counter that I wouldn’t be embarrassed to use in public. 
I worked with an engineer to create the Cocoknits translucent, matte-finish counter with magnified numbers, a lock, and a steel backing so it sticks to the Maker's Keep Magnetic Bracelet.*”
*Bracelet sold separately.