...slide the butt section over it (рыбалка)

[Nayton]

Помогите понять следующее предложение: As you feed the pole back look for the roller and slide the butt section over it

Контекст:If the fish is hooked you can estimate its size by the amount of elastic stretching out from the pole. If the fish is running wait until it stops before bringing the pole back. You may need to add a section of pole if it keeps going. Once the run stops feed the pole back through your hands keeping it parallel to the water. As you feed the pole back look for the roller and slide the butt section over it. You can then look at the elastic as you slide the rest of the pole back over the roller.

Спасибо!