Quik-Tube Cardboard Concrete Building Form Tube 4 ft. L X 8 in. D, Quikrete, Mfr#: 6922-01

Used by homeowners and residential contractors to create everything from lamp post and mailbox bases to deck supports. Easy to use cardboard tube scaled-down version of rigid fiber forms that heavy-construction contractors use. Pour concrete in form let it dry then cut away form.