Pull the String for Instant Lift: In the middle of the large cup strapless dress s, there is a drawstring that you can use to adjust the perk. You just pull the string tight after you place the strapless push up s cups on your breasts. And then you will get a support and push making you look a bit bigger in that area. your breasts look bigger and full. 2 Packs Invisible Bras to Fit Different Clothes: Push up dress s give you the cleavage you needed without having to wear an actual . Self adhesive sticky for women is thin enough so there are no visible lines under shirts. You do not have to deal with shoulder and back pains because there are no straps and you get the feeling of not wearing a even when you are wearing one. Skin friendly and Sticky: Drawstring s for women are made of natural and harmless silicone material. Just enjoy your time because there are no irritation or itching. Not only do the for strapless dress actually stick, they somehow do not leave any kind of sticky residue after several uses. Do not worry about slipping or peeling.