Just peel and stick the backer and apply to your substrate and you’re ready to practice with your new target and hone in your IR optic. Your target will appear black or white depending on the contrast setting of your optics. These economical passive thermal targets help prepare you for that critical shot. Dimensions: 20′ x 40″ Mounting: Attach to silhouette substrate using the peel and stick adhesive backer. Most importantly, there is no need to tilt these targets as they function tilted and straight on.