The ebay one that Baldy-Old-Troll has listed but its a long one. To give you an idea, I'm 5' 10 and use a 203 or 205 in my river boat and a 215 in my touring boat. When I started a couple of years ago one paddle did everything and got me going but as I have progressed to ww and touring you notice the difference in terms of efficiency and ease of use but I could still use one paddle if needs be. As a rule of thumb to get started, if you stand the paddle upright, reach up with one hand and hold the top of the paddle. Your arm should still be slightly bent, less than 45 degrees but not stretched