The EC3-C keeps a similar shape design as the larger sizes in the series, preserving the distinctive feel while creating more flexibility in vertical movements. Shortest in length of the EC series, the EC3 features an extended curved back that retains palm support and allows you to wrap your hand around the mouse comfortably. The shortened back of the EC3 creates more space at the base of the palm, which can benefit vertical movement. Considerable spacing on the right side to place your 4th and 5th fingers to adjust your grip. Considerable spacing on the right side to place your 4th and 5th fingers to adjust your grip. The curve on the right side allows claw grippers to hold and lift the mouse with ease. Try our mouse comparison chart to help find what size works for you!