The Spectrum 4 Gallon Container is robust and durable that features a wide opening for rapid no-spill filling and will fit any Spectrum Cap. The container is semi-transparent with graduated markings long the side making lubricant level easy to see. It is ergonomically contoured to fit forearm and with front and back handles for easy pouring. The container comes with a writable "CONTENTS" label to provide easy identification of lubricant type. The Spectrum 4 Gallon Containers is part of the Spectrum Oil Containers that provide a simple, easy-to-use and error-free solutions to store, identify, transport, and dispense lubricants. They offer users an excellent way to keep lubricants free from dust, dirt, water, and other machine-damaging contaminants.