While these PET Bullet Bottles with their round, tall shape and soft shoulders offer a stylish look, their true appeal is a bold blue appearance and impact resistance. Designed with a rounded shoulder and an inverted teardrop design, the round base is stable for easy filling. These bottles are also known as Cosmo Rounds. Should not be subject to temperatures exceeding 120 degrees F. This includes filling temperatures or storage conditions. Include a black polypropylene ribbed cap with a foam liner.