The Gateway Chief is a thin putt and approach disc with a very slim profile and a flat top. This is a beaded putter described as a "low profile Wizard with the same nose shape and bead." If you don't like bulky deep rimmed putt and approach discs, try the Chief.
 
Sure Grip is Gateway's basic plastic. Like the name says, this is a very grippy polymer blend. For putters, there are actually several different blends including Soft, Super Soft, Super Stupid Soft, RFF, Eraser, and more.