These are silicone sticky bras in a flower shape. They have a panel to pull up the breast for lift and support under anything strapless or backless! They are pretty sticky and stay in place for 3 or 4 uses. When you take them off, they do not leave any residue on your skin. You must have clean skin with no lotion or oil to apply and work correctly. They have a small amount of depth to them for a little bit of extra "love" in there! They cannot be washed very well and should be thrown away after a few uses. They have plastic covers to put on when taken off to protect them in between uses. These bras can be used under a regular bra for a little bit of extra firmness and fullness. They can be used with strapless and backless tops!