One method is that holding one end of rubber mallet and slightly knock rim of crystal singing bowl you will heard a pleasant sound; By another way firstly giving a slight knock on singing bowl before last sound goes away you rub rim to make a pleasing sound. tone quality of crystal singing bowl isn t always same every time being knocked so you can adjust speed of friction or inclination of rubber mallet to achieve satisfying effect. Features: rubber mallet suits for crystal singing bowls. Creates a beautiful peaceful healing sound and long echoes. Adopting rubber material mallet head is of big flexibility and brings auditory impact while knocking sound bowl. tomentum on surface of mallet increases friction to easily grip mallet. Perfect accessory for your crystal singing bowl. Specifications: Material: Rubber Color: Ivory Item Size: 22 * 4.5 * 2cm / 8.66 * 1.77 * 0.79in Item Weight: 87.9g / 3.1oz Package Size: 23 * 11 * 4.5cm / 9.1 * 4.33 * 1.77in Package Weight: 112g / 3.95oz Package List: 1 * Rubber Mallet 1 * Rubber Ring