50mm x 122mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Nuts Easy Operation - Simply lift

Easy Operation - Simply lift and rotate the lock 180 degree to lock or open the unit

Stainless steel knob

Material: Coated Paper

1 x Push button Switch & 1 x Plug Wire & 1 x Rubber ring

Widely used in home furniture

50mm x 122mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 2pcs Nuts Easy Operation - Simply liftFeatures: 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