Cutout Diameter: 75mm/ 2.95in; Material: ABS, Copper Universal 4-Inch Binding Post Subwoofer Box Terminal Positive (Red) And Negative (Black) Indicators Rear Connections Use Secure Screw-In Connectors Package includes: 2* Round Speaker Box Terminal Cup Cutout Diameter: 75mm/ 2.95in
Overall Diameter: 104mm/ 4.09in
Top Mount Depth: 1in
Color: Black
Material: ABS, Copper

Universal 4inch Binding Post Subwoofer Box Terminal
Positive (Red) And Negative (Black) Indicators
Rear Connections Use Secure Screw-In Connectors

Package includes:
2* Round Speaker Box Terminal Cup