People have different sized hands and wrists, so Hand-EEE™ Wrist / Ankle Wallets come in 5 standard sizes: 7”, 8”, 9”, 10” and 12”. Wallets can be ordered up to 22” to fit on the upper arm or over your jacket. To determine the size that would best fit you, measure the wrist or ankle where your Hand-EEE™ will be worn about 3 inches above the bone. Wallets are made of neoprene, so there is some stretch. A little tight slipping over the hand or foot is usually just right on the wrist or ankle.