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.