Size S: 0-13 pounds, Size M: 13-27 pounds, Size L: 27-38 pounds. Ample quantity: the package contains 2 pairs of thumb sucking guards in pink, 4 pieces in total, providing sufficient supply for frequent changes and maintaining hygiene. Breathable and soft: the baby thumb guards are made of mesh fabric, offering good breathability and softness to help prevent sweaty hands. Both the fingertip and wrist areas are reinforced with fabric, enhancing durability and ensuring long-term use. Adjustable strap: equipped with a strap and plastic buckle, allowing adults to easily adjust the fit to suit small hands and help prevent the guard from falling off. Help discourage thumb and finger sucking: these guards can assist in reducing common habits such as thumb sucking and nail biting, helping keep little hands cleaner. Easy to clean: the guards can be sanitized by placing in boiling water for 30 seconds before first use. A practical solution for parents seeking to help their child break oral habits, making them a thoughtful gift for families with infants.