8 inch Practice Pad - Tunable, Grey, Ambassador Coated Drumhead. with Stand. The Tunable Practice Pad Gray with Stand is the perfect tool for beginning and advanced drummers. The Tunable Practice Pad features a replaceable Ambassador Coated drumhead providing the bounce and feel of a real drum. The Practice Pad can be mounted on the stand for upright playing and also has a protective rubber bottom for non-scratch/non-slip table top use.