Equipped with high precision strain sensor, the grip strength meter gives you accurate momentary digital reading of gripping power in LCD digital display. Measuring Capacity: 198lbs / 90kgs. Made of high quality plastic material, sturdy and durable. The spring handle device design, give you comfortable hand feeling. Vary suitable for rehabilitation training, training, etc. This is a choice for someone is sports athletes, musicians, rock climbers, tennis players, golf players, boxers, drummers, guitarists, pianists and much more. It is made portable to take along anytime and any day. Power Supply Mode: 2 Pieces AAA Battery (Not Included) Size: 19x12.5 cm/7.5x4.9 inch Material:plastic colour:Gray Package Contents: 1 * Grip Strength Meter 1 * English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.