Expandable diameter - This holder can accommodate any bottle or insulated cup up to 32 ounces. No more worrying about the size of your beverage – just attach and get sipping! Stay hydrated while you’re on the move - With Sun Mountain's XL Drink Holder and Bracket, you'll never have to worry about leaving your beverage behind again! It has an expandable design that fits any bottle or insulated cup up to 32 ounces, so you can stay refreshed while you stay focused on the game. Durable and secure – The molded plastic construction makes this drink holder incredibly durable, while the included attachment knob securely fastens it onto any push/pull cart with 1” tubing. Enjoy long-lasting enjoyment from this quality product. Secure attachment knob - With an included attachment knob that fits any cart with 1” tubing, you don't have to worry about your holder coming loose during those mid-round speed bumps. Fasten securely and hit the links without worrying about leaving your favorite drink behind. If you prefer carrying larger beverage bottles or insulated drink cups on your push cart, the over-size cup holder is essential.