12Pcs 75mmx75mm(2.95inch) Plastic Tubing Plug Square Post End Caps for Handrail Stair Newel Guardrail Tube Black POM Rods Two screw hole connections to

Two screw hole connections to get the air in and out

66 inch (D * H)

"pro" look to your bass speaker building project

12 Pcs x Repair plate

2 in 4 out

12Pcs 75mmx75mm(2.95inch) Plastic Tubing Plug Square Post End Caps for Handrail Stair Newel Guardrail Tube Black POM Rods Two screw hole connections toDescription: * Made of soft plastic; Excellent performance in noise reduction, anti skid, and corrosion resistance. Plastic Tubing Plugs can greatly reduce noise, you should no more worry about a harsh sound when moving the chairs and tables. * Widely used in round table legs, stair railings, balcony railings, etc; Kindly reminder: choosing the sizes of these plastic covers is determined by the outside diameter of something that you want to insert. *