Is it a cup holder? Is it a tie-down? Yes and Yes! Keep your chest down and your drinks up. Place thru tie-down slot in your cooler, and secure down using a strap or turnbuckle. Wide cup holder opening works for 22oz bombers as well as our 30oz Twisted Sippa. Use dual bottle openers on our mascot Wade's face to keep your good times rolling. Can be used alone but is best in a pair with the standard tie down or another cup holder tie down.