I run the walker 107. Along with many of the people in my network. So that we an duplicate each other with out having to figure out what dipsey size and ring everyone is using. The walker 107 is 107 mm wide about the same size as a standard dipsey with a standard ring. But because the walker is one piece no worries about the ring falling off. I have been catching 2 to 5 fish a day on the walkers with perfect 10s back 30 foot on a 2.5 setting.