This unique accessory allows you to add a base made of three foldable high strength steel legs to the Monopods 679, 680, 681. After using them the legs can be folded and stored inside the bottom section of the monopod ready in a few seconds when needed. Attachment: Ø25 hole (Ø20 with adapter); color: black; load capacity: 30.86 lbs.; material: aluminum; weight: 0.93 lbs.