Target your training: focus on one or two fingers at a time - even your thumb:
- pinch or crush - your choice - one or two fingers at a time
- precision manufacturing for world-class performance, feel, and appearance
- perfect - and portable - way to train your thumb
- proprietary IronMind GR8 springs in 7 strengths: precise, durable, good-looking
- ergonomic handles for reduced pressure on soft tissue of hands
- CoC compatible: works hand-in-glove with Captains of Crush Grippers
- made in the USA
Choose the IMTUG based on the relative strength of your fingers:
Thumb: weakest - use an easier IMTUG
Ring and pinkie fingers: moderate - use a medium IMTUG
Index and middle fingers: strongest - use a tougher IMTUG
Training recommendation with the Captains of Crush Grippers:
| CoC-Gripper | Two-Finger Utility Gripper |
| All fingers |
Thumb Ring-/Pinkie- Index-/Middle- |
| Guide, Sport | IMTUG1 IMTUG1 IMTUG2 |
| Trainer, Point Five, No. 1 | IMTUG2 IMTUG3 IMTUG4 |
| No. 1, No. 1.5, No. 2 | IMTUG3 IMTUG4 IMTUG5 |
| No. 2, No. 2.5, No. 3 | IMTUG4 IMTUG5 IMTUG6 |
| No. 3, No. 3.5, No. 4 | IMTUG5 IMTUG6 IMTUG7 |
