You can upgrade and customise your Nerf blaster with this long-range Nerf Modulus scope for accurate targeting. The Nerf Modulus system lets you build your own blaster for each mission or battle and is compatible with the Nerf Modulus range of blasters. For indoor and outdoor use. Size H39.1, W12.7, D4.8cm. Weight 0.12kg. For ages 8 years and over. (not included) plus (not included). WARNING(S): Not suitable for children under 3 years old. Only for domestic use.