Sizes Z1 & Z2 are the short stem version.
Size - these new Friends would take cams to a new level to the point where incredibly the smallest would go where a fat knifeblade would fit.
Flexibility - New technology was developed to provide climbers with total stem flexibility and complete control.
Control - We realised flexibility is of limited use without the control, but we acheived positive directional control of the cams through an innovative combination of flexible springs and guides.
Versatility - To complete the design of these exceptional micro-cams, they needed to work Trad and Aid and be able to be subject to the rigours of wall after wall - or fall after fall. They did.
Lightness - Reducing components, re-evaluating and going beyond the boundaries of current camming technology, created a range of cams lighter and more compact than anything previously imagined. A complete set (6 pieces) weighs 9.5oz (268gm) - little more than a single Technical Friend 4.
Headsize - The headwith of the Zeros 3 - 6 is narrower than their equivalent Friends so they go places Friends don't.