Our 9-pack of LED Green Golf Cup Rings are an alternative to the traditional glow in the dark cup rings and an easy way to quickly identify the cup. Each LED cup ring has 3 modes of operation: steady, fast/slow flash. They are battery-operated and will have approximately 9 hours of usage time. Just insert into cup either as a "bracelet" or use in "open" position and start the flash. Batteries included and installed. Just perfect for 9 holes. Our LED light-up putting cup rings are sold 9 to pack. Please order in increments of 1 pack.