These Unicorn Bottles are by far the best out there. At least in our opinion. We use these Bottles for every e Juice we have. The glass bottles that the e Liquid comes in is just not useful to us, at all. These 15ml Unicorn Bottles & 30ml Unicorn Bottles have very precise tips and a wide mouth to pour your e-juice into. You will absolutely love these Unicorn Bottles, we promise.