NAF Five Star Superflex with Glucosamine. UTBZ1781 Superflex is the right combination. A scientifically balanced ratio of readily absorbed Glucosamine and Chondroitin, highest quality MSM plus the added benefits of a powerful antioxidant formula, exclusively designed by NAF to address excess toxin build up around the joint.Please Note: Size guide image relates to standard sizes only. Pack quantity is listed above. If for any reason you wish to return your goods you can do so within 30 days of receipt. Goods must be in the same condition they were received. This item is in the category "Sporting Goods\Equestrian\Horse Feed & Supplements\Horse Supplements". The seller is "pertemba" and is located in this country: GB. This item can be shipped worldwide.