This round back rear bag is designed to work ABR bag rider for ELR shooters. It has a flat top where the ears rest & tapers away from the trigger. It comes with square ears with a 5/8" spacing between the ears. This bag is approximately 2-3/4" tall from the table to the bottom of the ears and is 9-1/2" L X 5" W. This bag is a very stable bag and the longer base allows space to rest your hand and also eases use of the dial on your ABR.