Abstract: The device is placed in crevices of rocks or walls to secure a rope during climbing; it is later removed. The shape in end elevation is "trefoil" (i.e., three equiangularly spaced arms extending from a center, the ends of the arms being rounded) and in side elevation is preferably trapezoidal. Two intersecting holes are formed in the device across the bases of the two wider arms. A sling passes through the holes and serves to receive climbing rope elements. In a modification, a second set of two intersecting holes, each parallel to the first holes, are spaced from the first set for a second sling.