Step 1:

Place your non-shooting hand into the arm portion of the Jumpshot Trainer as shown in the picture. Tighten strap as needed.

Step 2:

Take the longer portion of the Jumpshot Trainer and wrap it around your forearm placing the small loop around your thumb.

Step 3:

Tighten the Jumpshot Trainer as needed. This will prevent your non-shooting hand from extending and interfering when shooting the ball.

Step 4:

Re-adjust and tighten accordingly to correct your shooting form.