The sample pair of mitts (size medium) used 34 grams of yarn.

The Circle, Circle mitts are knit from the cuff up to the fingers. When binding off be careful not to finish too tightly or you will restrict your finger mobility. The sample mitts use a standard bind off “in pattern,” meaning the rib is maintained as you bind off. Binding off all stitches knitwise may cause the edge to flare open.
You can easily get two pairs of these fingerless mitts from one skein of Alto yarn, so make a pair for yourself and a friend!