The Heavy Duty Beach Umbrella Sand Anchor by AMMSUN is ideal for strong winds on the beach. It safely keeps your umbrella from blowing away. Simply screw the beach umbrella sand anchor in the sand, lawn, yard, patio and garden, install your umbrella with the thumbscrew tightening mechanism. The anchor has a fantastic 32% price drop! Right now it’s just $16.95. It’s a great gadget to have for under $20!  Jeff