These black containers/buckets are rectangular in shape and are made with virgin, high density polyethylene material. These patented containers have no holes in them and can hold up to 8 or 13 gallons of liquid. They work well for mixing solutions or for building your own mega hydroponic system. These containers are nestable, with built in hand grips, making them easily transported. The lid has a recessed fit with a tear strip and a built in handle on the front portion of the hinged lid, creating easy access without removing the lid.