Doug............Hank gave me that information maybe two years ago and dang if I can remember. I have looked thru PM's and other stuff and cannot find it. I have since found that a stool I have at home has worked fine for me but I am in a different situation. I need to be extra high since the sled sits up higher than a regular front/rear rest. From a competitive benchrest stand point, they were definitely made too tall but that is water under the bridge. If Hank can't get you the information the next time he is at the range, bring extra pillows!