From pattern description:


“These mittens were knit specifically for a small one year old with approx 5 1/8 inch wrist circumference and a wrist to fingertip length of about 5 inches. At the mom’s request I made these a bit small at the cuff so the baby couldn’t slip them off that easily. So I’m going to give the numbers I used then the recommended number for a slightly larger size in parentheses. The smaller size should work for a large six month old or average 8 month old. The larger size should comfortably fit a one year old.”