Each Happy Trails Pannier comes with 4 Happy Loops to be used to secure additional luggage, tent poles, tents or whatever you'd like to the top of each pannier. Our aluminum top boxes come similarly equipped.
The mount hole spacing is 2.615" center to center. The hole diameter is .20" (5 mm). The loop length is 2" W x 4.8" L with two .5" x 1.5" strap slots.
Each kit comes with 1 Happy Loop; 2 closed end pop rivets, and 2 M5x10 button head bolts with nut options to attach to your application.