Click to expand Tap to zoom GDM Video Series - Inner Shell Finishing by Guerrilla DrumMaking Save Liquid error (product-badge line 32): -Infinity% $2.99 SKU Rent Video - $2.99 Buy Video - $3.99 Rent Video Buy Video Rent/Buy 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Add to Wishlist Your wishlist has been temporarily saved. Please Log in to save it permanently. Easy way to up the eye candy, protect the wood, and tweak sound. Up your game and see how to apply finish to the inside of your shells.