Black Friday Sale
Boost Grip for Everyday Confidence
Unlock new power for daily tasks using the Threo trainer. Simple movements quickly make the hands, wrists, and lower arms feel stronger. Compact size fits easily in most bags for travel or home use.
Adjustable Resistance
Challenge your hands using custom tension levels for progress. Fine-tune settings with a twist, so every session suits your needs.
Comfortable Grip
Soft padded handle prevents pain and avoids slipping during use. Enjoy each squeeze with a secure hold, no matter your hand size.
Strengthens Muscles
Regular practice targets weak wrists, helping support sport or work. Benefit from improved power in fingers, forearms, and hands.
Noah P.
Daily workouts with this thing made my wrists sturdy. The adjustable knob is simple for making it right for me.
Ethan V.
Fun way to make hands stronger every day.