YY Vertical Alien Extensors Hand Trainer

The Alien Extensors Hand Trainer is a simple yet effective device that can help you improve your finger strength, endurance, and balance. Whether you are a climber, a biker, or just someone who wants to keep your hands healthy and agile, the Alien Extensors Hand Trainer can be a great addition to your routine.

• It’s made from recycled silicone that is soft, durable, and eco-friendly. It also features a Polygiene® anti-odor and anti-bacterial treatment that utilizes silver salt which prevents the growth of odor-causing bacteria and keeps your device clean and fresh
• The Alien Extensors Hand Trainer consists of a silicone ring with four protrusions that resemble alien heads
• Different colours offer different resistance; green is easy, blue is medium and orange is hard