Spyx / Rear-View Spy Glasses - Cool Kid Sunglasses With Rear View Mirror Built-In. See What'S Behind You! Promote Imaginative Role-Playing & Educational ExplorationSpyX Rear View Spy Glasses See your enemies before they sneak up on you! Discreet Rear View Mirrors: Built in mirrored lenses let you see behind you without anyone knowing. Durable Design: Impact resistant, reflective lens sunglasses ensure long lasting play. Easy to Use: Simply wear like regular sunglasses and glance at the lens edges to spy behind you. Educational Benefits: Encourages scientific exploration, observational skills, and problem