50 * 70cm: suitable for newborns to June when the baby sleep pad below， to prevent wet sheets
? 70 * 100cm， 70 * 120cm: for baby crib or baby bed position
? 100 * 140: for about 3 years old baby mat below， the large size， the baby how to move are not afraid
150 * 200，180 * 200cm: it can be covered with the single and double beds， a good mattress protection
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