For shooting on level ground, or flat surface. Rapid set-up and pull down becomes natural as legs are all in-set and ready to go relative to each other allowing extension of the tripod legs without detaching the spreader as the arms of the spreader are telescopic . Great with all 100mm Bowl tripods, (except the DA-100 short) . On Ground Spreader SP 100 Weight: kg 0.8 / lb: 1.8 Payload: kg 50 / lb: 110 Build up radius:cm 33 to 58mm / in. 13 to 22.8 Adjustable Recommended for head / tripod: all tripods 100 mm bowl (except DA 100 short)