- 10인치 탬버린 전용 Easy Roll-Ring 입니다. - Our new Roll Ring™ is designed to aid concert percussionists with the execution of thumb/finger tambourine rolls. - This circular ring helps players easily create the friction needed to produce a smooth, even sounding roll. - The 1″ wide band is specially shaped to conform to the outer edge of a headed concert tambourine. - It has a special non-permanent adhesive backing that makes it super easy to put on and take off in seconds! - The Roll Ring is reusable and can be applied and stored numerous times. - The Grover Pro Roll Ring is included free with the purchase of all new Grover Pro concert tambourines. - Also sold separately. - Whether you’re a seasoned professional or an aspiring young percussion student, our innovative new Roll Ring will help you sound your best!