Description: 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, gymnastics training, etc. This is a perfect gift 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. The handle of hand grip strengthener is not only fit for small and large hands, seniors, and teens but also ensures comfortable holding. Specification: Material: Plastic Power Supply Mode: 2 Pieces AAA Battery (Not Included) Size: 19x12.5 cm/7.5x4.9 inch Package Includes: 2 Pieces Grip Strength Meters(Not Included) 2 Pieces Manuals Note: Please allow slightly difference due to manua l measurement. Color may be slightly different since different monitor. Thanks!