**Feature** Enter your model number to make sure this fits. Naturally contoured design follows the natural shape of your hand and fingers for increased comfort during long sessions Onboard memory lets you program up to 5 ready-to-play profiles， so you can take your personal preferences with you 0 TRUE 0 Naturally contoured design Follows the natural shape of your hand and fingers for increased comfort during long sessions. Large， concave buttons: Let you locate buttons by touch on the home row. Solid， stable design: Helps assure that your gameboard will keep up when your game gets intense. Strategically placed feet. Stable weight (650 grams).