I wanted to post some pictures comparing the Winning MS-400-B (12 oz. velcro-Blue) to the Winning MS-600-B (16 oz. velcro-Red). I have seen people ask questions about the sizing difference between the different weights of Winning gloves, so I figured some pictures would help. As you can see from the pictures, the MS-600 is longer and wider than the MS-400. This is true for the internal width also. However, the internal length for your fingers is the same. Also worth mentioning is the dimensions for the thumb are the same with these two models. I hope this helps anyone that's curious about the size differences. In one of the pictures I have a Windy TBG-3 bag glove, Size Large for comparison.