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, enough quantity for babies to wear and replace frequently, easily keeping sanitary. Breathable and soft: the baby thumb guards are made of mesh fabric, featuring good breathability and softness, saving their hands from being sweaty; Both finger tip and the wrist part are sewn with cloth, easily reinforced the thumb guard, make it not easy to be torn off and can be applied for a long time. Adjustable strap: attached with a strap and a plastic buckle, adults can easily adjust the size of the stop sucking thumb to fit kids' little hand well, avoid it falling off easily. Get rid of bad habit: babies may like biting nails or sucking their finger and thumb, make their fingers full of saliva; Try to cover their little hands with these finger sucking guard thumbs, let it accompany babies to get out of the bad habit. Nice gifts: these sucking stop thumb guards can be put in boiling water for 30 seconds while first time using, easy to clean; Practical tools to avoid kids put their fingers or thumbs into the mouth, nice gifts to family or friends who have babies.