The Allen Archery Caliper Release is a Large and XL Bow String Release aid that will work for most adults and specifically men. This is ideal for shooting your arrow for bow hunting and target practice. If you want to find out more about this product or make a purchase go to: http://www.muddcreek.com/products.php?product=Allen-Archery-Caliper-Bow-Release-Aid-L-and-XL-153