Mulligan's video and DVD's will cover all the spinal material in "NAGs, SNAGs & MWMs" and will bring the viewer up-to-date on new material. The video or DVD's are easy to follow and the script is informal. These will be of interest to the researcher and will kindle the enthusiasm of the manual therpay clinician. Non-returnable. The video's and DVD's have the exact same information - just a different playing option. This is a non-returnable item.