Water ski designed and built by Colin Johanson of Gizmo Bytes. Note block at front that has a slot that catches a toggle on the rope giving easy low pull stating. Note this easy start requires a quality quick release on the boat for safety. Shape of the basic ski 2100 mm long and 350 mm wide with two sets of grooves for longitudional stability along with the skeg/keel. Note front notch for easy starts. If you want to buy equipment, check out my 'Garage Sale' website.