If you're tired of struggling with a travel bag that won't pull straight or go round corners - and gives your neck & shoulder muscles hell, then this is for you. Brilliantly designed fold-down extra legs & wheels, plus usual base ones, take all the weight. The bag is therefore so easy to pull along with little effort, straight & round corners. The legs fold back for flights. Glad I spent the extra, and, being in my sixties, so are my arm, neck and shoulder muscles. They do several different sizes, I got the Meridian, perfect for the average golfer with 14 clubs, shoes and balls. Great protection too.