Every young scientists should have their own pair of safety goggles. These are sized especially for children and have a lens width of about 5 inches (21.5 cm) The clear flexible vinyl body provides comfort, fit and durability as well as protection against splashes and flying objects. Perforated sides and top provide ventilation to avoid fogging. Strap color may vary. (perfect for our Film Canister Rocket experiment) Meets ANSI Z87.1+ standards. Available individually, or discounted in packs of 15 or 30.