Wolf Dolce Maestro Chin Rest

I find this product the most comfortable of all chin rests.I have a large viola and it's able to fit it's wide girth whilst not adding unecssary height to the instrument. The softness of the faux leather allows a certain amount of moulding to facilitate comfort and stability.
Cons: the little 'skirt ' covering the screw mechanism always tears within a few days. Also,the screw will always eventually loosen so it's good to keep the screwdriver it comes with to hand in your case.