How To Choose The Resistance You Prefer to? Click Here

Step 1: Click "Add to Cart"


Step 2: Slip your screen down, and you will see the content as the picture shows

Step 3: Click"Remove from cart"


Step 4: Then you will see the content as the picture shows


Step 5: Now you can choose the resistance you prefer to, and Add to the cart. Finally, you can get the free gift.