Come and see our amazing products. The Fingertip Pulse Oximeter monitor fits all finger sizes from kids above four years old to adults as it measures the level of oxygen in the blood and reads the pulse rate in just eight to ten seconds.Suitable for sports enthusiasts like mountain climbers, skiers, bikers,aviators,or anyone is interested in measuring their SpO2 and pulse rate before or after exercise.It's a great gift for you. Pls confirm with us about the packing info, stock color and exact production time before placing your order.