What is gamer's thumb, you ask? Sweaty hands Blisters? When your equipment doesn't match up with your gaming, it is hard to be the best. KMD's line of PSP Analog Joysticks for professionals are custom molded to ensure maximum comfort, control, and performance. The 8 slip-on buttons ensure higher scores and high-quality. Compatible with PSP1000/2000/3000. Eight professional-quality Joysticks Included. Easy Slip-On Installation for Instant Results. PSP Console Not Included.