Rhythm Testament Pro Balanced Custom Percussion Sticks are hand crafted of select African Mahogany. Mahogany does not shrink, swell, or warp as much as many other hardwoods. RT Percussion Sticks have been found perfect for achieving sonic clarity. Each Pro Balanced Percussion Stick is hand branded, sanded to a uniform weight and feel, rolled for straightness, weighed and matched for balanced pairs. Rhythm Testament Pro Balanced Percussion Sticks are currently being used around the world for many different types of musical performances and recordings.