Features Rolled tone holes, Reactor Panel pads Engraved bell, adjustable thumb hook 3 ring strap hook High F# key Deluxe lightweight case, mouthpiece, cap, ligature and neck strap. Description Product Description You've been waiting your entire life for this saxophone! Introducing Series "X" by L.A. Sax!! The Series "X" is the ideal combination of the superior acoustic design of the current Big Lip series coupled with our exclusive new Reactor Panel Pad.This new pad design features a special domed booster that exponentially increases the "X" performance in two ways. When the key is closed, this panel increases the tonal resonance by reflecting the vibrating air column away from the tone home and back into the bore of the saxophone. When the key is open, it directs the egressing air around the pad cup for quicker response.