Application It is ideal for meditation, yoga, sound healing, and other mind-body relaxation practices, and is suitable for meditation enthusiasts, and anyone seeking inner balance. Specifications Material: Aluminum Alloy Tuning Fork Characteristics: Weighted Design Frequency Error: ±0.01% to ±0.5% Color: Silver Gross Weight: 0.75kg/1.65 lbs Net Weight: 0.68kg/1.5 lbs Package Size: 25*21*6cm/9.84*8.27*2.36 in Package Included 8* Tuning Forks 2* Tapping Hammers 1* Cleaning Cloth 1* Spanner 1* Triangular Silicone Pad.