If you knit socks for gifts, " Sock It To Me Shoe Size to Sock Length Conversion Guide" offers information on making the perfect socks for everyone. All you do is ask, " What size shoe do you wear?" and this simple tool will assist in inch or centimeter conversions. Complete with rulers around the edges, the laminated card is the perfect bookmark for your sock pattern book. Three charts; women's, men's, infant/children.