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: made of mesh fabric, these baby thumb guards offer good breathability and softness, helping prevent hands from becoming sweaty. Both the fingertip and wrist areas are reinforced with fabric ing, enhancing durability and ensuring long-term use. Adjustable strap: equipped with a strap and plastic buckle, allowing adults to easily adjust the fit to secure the guard comfortably on a child's hand and help prevent it from falling off. Help discourage thumb and finger sucking: designed to cover little hands, these guards may assist in reducing thumb and finger sucking habits. Ideal for babies who tend to suck their fingers or bite nails. Easy to clean: can be sanitized by immersing in boiling water for 30 seconds before first use. Practical solution for parents seeking to discourage hand-to-mouth habits; makes a thoughtful gift for families with infants.