IF YOU COMPARE THE REAR OF THE T SHAPE WITH THE RETAIL MODEL YOU WILL SEE ITS SOLID ON THE XPERIMENTAL WHICH IS WHERE THAT EXTRA WEIGHT COMES FROM. THIS WAS THE FOR TOUR PROTOTYPE VERSION OF WHAT BECAME THE RETAIL DETOUR PUTTER. PLEASE SEE THE PICTURES TO JUDGE THE CONDITION FOR YOURSELF. This item is in the category "Sporting Goods\Golf\Golf Clubs & Equipment\Golf Clubs".The seller is "pw-golf" and is located in this country: GB. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Republic of, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, Korea, South, Switzerland, Taiwan, Thailand, Bangladesh, Bermuda, Bolivia, Barbados, Brunei Darussalam, Cayman Islands, Egypt, Guernsey, Gibraltar, Guadeloupe, French Guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri Lanka, Macau, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi Arabia, South Africa, United Arab Emirates, Bahamas, Colombia, Jamaica, Kuwait, Panama, Philippines, Qatar, Uruguay, Chile, Costa Rica, Guatemala, Honduras, Trinidad and Tobago.