3 Pairs bra pad inserts has three MODEL . Triangle/Semicircle/Round.Choice you need model pad inserts. Comes with self-adhesive velcro to prevent the pad from moving . Every pcs 0.24 INCH thickness. the thickness is just right. it can well cover the protruding marks of the nipple. and it is soft . A CUP for 13-19 young girl .B CUP/C CUP/D CUP for Women .(Of course. this expression may not be very accurate. please choose a suitable size according to your actual situation ). We originated from the factory. and we have a detailed investigation on the size of this bra pad inserts. The high-quality products have been shown through pictures. Our costumer vioce : Perfect! I got a different brand before. which were ridiculously small. but these cups are just right for American women. They are wide enough to actually cover everything just like your bra would be. but these are nice and smooth on the inside. thin at the edges and maybe half an inch thick in the center. very standard and similar to most regular (not push up) bras.