Call pitches and keep track of defensive plays. The EvoShield Call Wrist Sleeve features a replaceable, 4" x 6" standard index card where you can write down what you need to stay on top of your game. Neoprene hugs your wrist without slipping out of place, and a hook-and-loop closure allows easy access to the back of the card. An inner loop gives you the option to wear the sleeve on your belt.