Using the Nerf N Series Gear Up Pack is easy. First, assemble your blaster. You can choose from 3 different blasters in the set and create 10 different styles with the 2 interchangeable accessories. Attach the removable scope to any of the 3 blasters for better aiming and the removable stock to 2 of them for a more comfortable grip. Load the included 18 Nerf N Series N1 darts into the blaster and you're ready for action. When playing, make sure to aim at a safe target area and avoid aiming at people's faces. For maintenance, keep the blasters and darts clean. After use, remove any remaining darts and store them in a dry place. Don't try to modify the blasters as it may affect their performance and safety. Have fun with your Nerf battles!