Trigger Learning Device DX
This is not for training your finger strength.
It is a practice tool to help your brain learn the correct finger movement when pulling the trigger.
【How to use】

Hold it as you would a pistol and pull the trigger straight back. Its small size allows you to practice pistol shooting anytime, anywhere.
【Specifications】

This product is pre-assembled and complete. It comes with interchangeable triggers (one long and one short) so you can adjust it to the size of your hand (finger length).

A precision screwdriver is required to replace the trigger. The built-in spring is not very strong. The trigger will move when approximately 450g of force is applied.