Using your Nerf Elite 2.0 Ace SD - 1 Dart Blaster is easy. First, load 1 dart into the front of the barrel. Then, pull back the priming handle. Finally, press the trigger to unleash the dart. There's an onboard storage on top that holds 1 extra dart, so you can quickly reload after firing. You can use the included 2 Official Nerf Elite foam darts both indoors and outdoors. For safety, it's recommended to wear eyewear (not included). Never aim the blaster at eyes or face. Only use official Nerf darts as other darts may not meet safety standards. Do not modify the darts or the blaster. Also, be aware that there's a choking hazard as small parts may be generated, so keep it away from children under 3 years. When not in use, store it in a dry place to maintain its performance.