Zero Z.1 Mallet Putter Zero Z.1 Mallet Putter - Introducing the newest member of the Zero family, the Z.1. Precision milled from 303 stainless steel, the EV2 boasts a new streamlined design to create a premium low-profile look at address. A thinned out topline, squared off rear bumpers and redesigned sole create a modern, sleek looking blade that seemingly blends into the putting surface, while the redistribution of mass behind the hitting area provides optimal sound and feel feedback. The addit