The Hand Stopper prevents the elbow from comfortably bending past 90 degrees, and stops the thumb or fingers from being fully inserted into the mouth. Try it for yourself right now - bend your elbow at 90 degrees and try it. - Rated #1 by dentists to make thumb sucking stop. - Includes a wall calendar with stickers to motivate and track progress guard Nipit was designed with your child's sensitivities in mind and is ULTRA SOFT. Nipit IS effective, and feels good & looks cool so your child will wear it. Nipit is proven to make thumb sucking stop for kids. https://www.amazon.com/Age-2-7-STOP-Thumb-Sucking/dp/B00VQU2DZS/ @anjelicaperry