Wittner Hypoallergenic Violin Chinrest 1/2-1/4 Cello Rosin and the top is a

and the top is a broadly grained spruce of uneven growth

1 Things 4 Strings Magic Rosin

The bottom is lined with a non slip rubber which we recommend using on uncarpeted surfaces only

Combine these and then ad anything you might ever have wished for: This is the recipe for the M7

Wittner Hypoallergenic Violin Chinrest 1/2-1/4 Cello Rosin and the top is aThis Wittner chinrest is an anti allergic, anatomically designed chinrest and is made of Space Age composite material. It features an easy and secure fitting, and comes with a screwdriver for installation. This chinrest is a side mounted chinrest, however a central mounted option is also available. ,,Wittner products are made in Germany.