Wrist locks are the ultimate weapon in a ninjas arsenal. Everyone is a target - nobody has strong wrists! They're easy to get too and require no special skills (like flexibility or acrobatics). As a smaller practitioner and 50+ grappler I need every advantage I can get! In my newest video "Playing Dirty! Ultimate Wrist Locks" I've compiled all the wrist locks from the BoneBreaker Instructional into one solid, 30 minute video. It includes wrist locks from all four positions (guard, side, mount, back) with multiple entries. Includes a full review video with multiple angles and more. Become the most lethal ninja on the mats... Playing Dirty never felt so good...