Step: 1.First, put on the left side. Stay upright. To ensure the clip towards the navel, otherwise it will not stop. Cover fats as much as possible and then put on the bra. 2.Do not stick in any area except breasts, otherwise there will be no boost effect. 3.Make sure both cups stay upright, then raise your breasts. 4.Lock the clip. Size Chart: Cup A : 70A(32A) 70B(32B) 75A(34A) 80A(36A) Cup B : 70C(32C) 75B(34B) 80B(36B) 85A(38A) Cup C : 85B(38B) 75C(34C) 80C(36C) 70D(32D) Cup D : 85C(38C) 75D(34D) 80D(36D) 85D(38D)