Specification:

Frame Material: ABS Plastic
Mesh Material: Cold Rolled Steel
Outer Diameter: 95mm / 3.74 inch
Inner Diameter: 72mm / 2.83 inch
Screw Hole Diameter: 4mm / 0.16 inch
Diagonal Center Hole Distance: 84mm / 3.31 inch
Package Content: 2pcs x Speaker Grill with Screws

Description:

Distribute screws, make you more convenient installation.
Great for speaker cabinet, home speaker or speaker.
Protect your Subwoofer from cuts, rips, tears and dents.