Mitsubishi Diamana 6th Gen RB Golf Shaft Driving Iron It's made from a soft It's made from a soft yet durable doubleknit blend that offers a little extra warmth and a weight that feels just right A typical 3m x 3m screen will require approx 30 hooks for attachment Diamana RB is a classic "Red Board” profile that features an active tip section while still retaining the same material technology package (see below) and low torque control characteristics as its lower 6th Generation launching counterparts Golfers looking to generate a little more speed through a shaft that has a little active tip section while also maintaining control down field