This parachute is great for model rockets or water rockets in the weight range of about 0.45Kg (1 pound). It is make from rip-stop nylon cloth parachute with a highly visible printed pattern that adds some color to the rocket's descent. It feels like silk and can be packed tighter to fit smaller diameter tubes. Octagon shape, the size is 76.2cm (30-inch) diameter as measured from flat edge to flat edge.