4Pcs 52.8mm x 52mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Box Vent Rubber V-Belts -Joystick switches or joysticks are

-Joystick switches or joysticks are manually actuated control devices for installation in control and front panels as well as in portable control equipment

2 x Fish Tape Leader

M3 hex screw to fixing the potentiometer shaft

1 x Rubber Backer Pad

Trox Bits Size:T9

4Pcs 52.8mm x 52mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Box Vent Rubber V-Belts -Joystick switches or joysticks areFeatures: Speaker Port Tube is used to improve the bass response of many types of speakers. There are plenty of types to help you with your vented box design, and carries tubes of every shape and size, including adjustable length ports and flared ports. These port tubes are a reliable, convenient installation, while at the same time providing a finished, "pro" look to your bass reflex speaker building project. Normal tubes suffer from nasty turbulence