Secure your beach umbrella or flag in the sand with our Mainstays Screw-In Sand Anchor. This 15.4" resin anchor is virtually indestructible and will make your beach experience even better by securing your umbella. Will accept up to 1.5" diameter poles. Simply screw the anchor into the sand, insert your umbrella, secure it with the set screw, and then enjoy the rest of the day worry free.