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.
Olivia G.
Great for building up my forearm muscles. I keep it on my desk and use it during study breaks—feels awesome.
Tony M.
I use the wrist tool every morning and my arms definitely feel stronger. Love how easy it is to throw in my backpack.
Emma H.
Love how soft the grip is, even after using it for weeks. Travel size is perfect for taking to the gym.
Dylan T.
Saw a big difference after just a few days. I can squeeze tighter and typing on my computer feels easier.
Lucas J.
Super handy for getting my hands stronger for guitar. The twist function makes everything just right for my grip.
Sarah K.
My grip used to be weak, but now opening jars is no big deal. Adjusting the tension is super simple too.
Jacob N.
It’s really helped with my wrist strength for tennis. Settings are easy to change and my hands don’t get sore.
David R.
Best little thing I bought for my hands! The padded handle makes it comfy and it never slips out, even when I’m sweaty.
Ben W.
Can’t believe how well it works. My weak wrist from gaming feels way better since I started using this daily.
Sophie Z.
Love how I can change the tightness whenever I want! My hands feel stronger, especially when picking up groceries.