Features:

• 1999-2006 GMC/Chevrolet/Chevy Xcab Dual 10" Downfire Subwoofer Sub Box Enclosure 
• 2hole 10" for GM/Chevy 1999-2006 Xcab
  
• Underseat Downfire
  
• Premium Charcoal Colored Carpet
  
• Xcab only, Does NOT fit Crew Cab
  
• Air Space: 0.95 Cubic Feet (per sub)
  
• Mounting Depth: 5.5"
• Mounting diameter (hole size): 9" (inches)
• Wood thickness: 5/8" (inch)
• Material: Highest-grade MDF wood on the market