After pressing the button, the wire wheel can give out line, shake the rocker arm, the release switch, then it can reset. Casting reels are equipped with braking systems that help manage the of the rotation of the spool during a cast in order to minimize damage. Features - Color: As shown. - Material: Metal. - Size: 19.9 x 5 x 5 cm. - The head of the low-profile reel has a magnetic adjusting knob. - After pressing the button, the wire wheel can give out line, shake the rocker arm, the release switch, then it can reset. - Casting reels are equipped with braking systems that help manage the of the rotation of the spool during a cast in order to minimize damage. - The spindle tweaking knob is used to adjust the outlet of the wheel, as it is easy to lead to damage if too loose, while too tight will affect the throwing distance. - The star shape spanner is used to adjust the unloading force of the low-profile reel, usually adjust until the hand can not pull the line.