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.
Chloe S.
My whole family tries it for fun. The handle is soft and it fits everyone’s hands, even my little brother’s.
Ethan V.
Fun way to make hands stronger every day.