What are the different jaw options for the Fractal Vise?

Fractal jaws:

The fractal jaws will clamp any difficult shape, like round tubes, irregular mouldings, or miniature bananas! They give you a secure way to hold your commonly unclamp-able parts, so you can work on your projects in totally new ways or just save your hands from cramp! Each jaw moves to wrap around any shape to grip on multiple points to carefully hug your weird shaped bits. Made from martensitic stainless steel. 

Nylon soft jaws:

You'd typically use these for working on soft painted models where you're only applying gentle pressure to workpiece. The Nylon compresses slightly, so it can't deliver as much gripping force as brass or stainless. Made from polyamide nylon. 

Brass soft jaws:

Brass is the traditional material for soft jaws and is a much softer metal than steel, which means they won't scratch softer materials like aluminium, brass, copper, wood, or plastic when clamped. Unlike the nylon jaws you can put a lot more clamping power through them. Made from high tensile brass. 

Silicone soft jaws:

This stainless steel backed and silicone fronted set of jaws offer a bit more grip while working on a fine polished surface. Perfect for jewellery making for instance, or a soft painted surface, as the grippy silicone will deform further around the part being held. These are designed for when a hard clamping force is not as necessary with delicate jobs.

Silicone is a very 'sticky' material so it will provide a very high friction grip to anything you put in it. It's particularly useful for any highly polished slippery parts, or delicate model work where grip and a delicate touch is required. Made from martensitic stainless steel and engineering grade silicone. 

Parallel soft jaws:

Brass fronted with a stainless steel base, these jaws will let you turn your Fractal Vise into a good old fashioned standard vise. If you're working on square bar or need to keep the same reference point in a repeatable setup, this is the way forward. Made from martensitic stainless steel and high tensile brass.