This bottle has a tilt shape to it. The name says it all, its comfi for the baby when she is feeding herself, she doesnt need to lay down in order to get the milk to the nipple compared to a straight up and down bottle. It also makes it easier on my hand when i feed her and i dont need to almost break her neck so she can get that last little bit. I got 3 6 ounce bottles for ten bucks but when she got older i had to get the 8 ouncers and i found a 3 pack for 3.50 on sale!!!! good quality and price.