Introducing the "D" Battery Holder with Terminals P015, a durable and reliable accessory for all of your electrical science experiments. Constructed from unbreakable plastic and featuring Fahnstock clips, these holders make for effortless and secure connections. The curved sides are specifically designed to prevent the battery from slipping out when inverted, ensuring a steady power source for your projects. Whether you're a student or a seasoned experimenter, this battery holder is a must-have for anyone interested in conducting thorough and successful electrical experiments. Don't let loose connections or runaway batteries hinder your progress - invest in the "D" Battery Holder with Terminals P015 today and watch your projects thrive.