Red Hound Auto Premium heavy duty Third Brake Light Lens Cover, designed tough and made from the highest quality materials. Product is backed by a no-hassle 1 year guarantee against defects. Compatible with Chevy/GMC: 94-04 S10 & Sonoma; NOTE: will only fit Regular or Crew cab. Will NOT fit the extended cab. Approximately 7-1/8" wide (at wide end) x 3-3/8" tall; made specifically to fit the Regular or Crew cabs only. IMPORTANT: If you have an extended cab or 3 door, this will NOT fit, the mounting hole spacing is different. Please make sure you choose the correct option for your cab size