Two distinct types exist. It's brand new and has a black wheel. The original model (white wheel, rubber band on the side) garnered the vast majority of the rave reviews. The latest update is a major downgrade. This X-718FB mouse is annoying after using an A4tech WOP-49 (cost in 202214.5) for seven years without a hitch. I'll probably check out Logitech or Bloody. The pluses: In-game DPi switching (with LED indicator) + Price + 5 buttons + Third Shot button + Oscar (with all the repercussions: macros, button programming) + Dependable (Hurray still going strong after more than a year.) Negatives are listed below: Rather from being a pleasant, tactile surface, the coating is grossly abrasive and irritating. Thick, inflexible cord (gets in the way of productivity).