JGR Copa Sand Anchor / Auger for Beach Umbrellas - Green Fits Umbrellas with poles of up to 1.5 inch diameters. Remains firmly in the sand or soft ground, to secure a beach umbrella against winds over 40 mph. The spiral flange built on a round cone shaped trunk digs easily into the sand. The comfortable handles increase torque to allow users to turn easily. Accommodates most size beach umbrellas using tightening and installs easily without tools.