READYACTION Office Pro- Chest Harness for larger Tablets Readyaction Office XL Pro Chest Harness holds larger tablets compatible with Apple Pro 12.9 READYACTION Office XL Pro opens from 7.5"- 9.5" TOP to BOTTOM. Please measure your tablet. As long as its between 8-1/4" to 9-3/8" in ONE measurement, it WILL fit! (either in landscape or portrait mode, if in this range) Premium Harness will fit from Approx 50 LBS - 400 LBS Readyaction Office XL Pro opens WIDTH wise to 7/8" (almost 1 full inch!) Made in the USA (Pittsburgh, Pa) Readyaction Office XL Pro, once loaded on chest, conveniently locks in any desired screen position for best hands free use. When not in use, lock tablet in upright, closed position against your chest. Safety strap included for further locking. heavier tablets,and support.