Warburton P.E.T.E. - Personal Embouchure Training ExerciserThe P. E. T. E. is a unique tool to use to perform isometric exercises that strengthen and develop the embouchure. The P. E. T. E. is the only tool on the market that exercises the exact musculature involved in playing wind instruments. Regular use of the P. E. T. E. will result in increased endurance and flexibility, and for many players, increased range