Universal device easily and securely holds your golf GPS unit in an easy-access position, in your cart's cup holder. Fits large cup holder sizes up to 3.75 inches in diameter; Grip-iT's unique design allows clamping arms to open up to 4.5 inches wide. Transfers to multiple vehicles and golf carts; fully adjustable for easy viewing. No tools required for installation; can also hold BlackBerry, iPhone, and other mobile electronics. Includes limited one-year manufacturer's warranty. Fits large cup holder sizes up to 3.75 in diameter. Fits most handheld Golf GPS devices. Grip-iT adjusts out to 4.5" wide. No tools required for installation. Transfers to multiple vehicles and golf carts"