Using these NERF ELITE Wall Cling Targets is easy. First, find a smooth surface like a wall or door to hang them on. Just stick the targets on the surface using the low - stick adhesive. You can arrange them in any way you like. To train, use your NERF ELITE equipment to shoot at the targets and try to get high scores. When you're done training, gently peel the targets off the surface. They won't leave any mess. Keep them in a safe place for your next use. Remember, these targets are for ages 8 and above. Don't use them on rough or painted surfaces as it might damage the adhesive. Also, avoid exposing them to extreme heat or cold to maintain their quality.