Dr. Winkle Hand Trainer

Dr. Winkler's Hand Trainer is a training device that uses air to assist with hand and finger rehabilitation, maintaining grip strength, and increasing muscle strength.

■Inflate with air for use, adjustable grip strength based on air volume ■Strengthen grip by squeezing one side and sending air to the opposite side ■Lightweight and air-filled, making it easy to hold without burden ■Train at optimal intensity based on air volume and squeezing speed ■Ideal for maintaining grip strength in the elderly and for injury rehabilitation ■Effective for children's coordination training ■Compatible with commercially available simple air pumps (inlet diameter: 5.5mm) ■Deflate for compact storage and easy transport ■Available in two sizes: 14cm and 16cm in diameter (when deflated) ■Perfect for elderly care facilities and rehabilitation centers

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