Federal Stone DQ R04 4' Reverse Radius White DQ Series Raised Safety Edge Coping. Raised safety edge pool coping is designed with both safety and aesthetics in mind. It features an elevated edge that acts as a protective barrier, minimizing the risk of water splashing or overflowing from the pool, thus ensuring a safer swimming environment. Beyond its functional benefits, the raised safety edge coping adds a stylish and contemporary touch to the pool design, elevating the overall visual appeal and creating a distinctive look for the pool area.