VR Headset, GMYLE Google Cardboard VR Virtual Reality 3D Glasses with Adjustable Focal/Pupil Distance for 3.5" to 5.6" Smartphone (Suction Mount) Focal distance and pupil distance both are adjustable. Large size of lenses to get super wide viewing angle and perfect 3D experience. Made of high quality ABS and excellent workmanship. Internal suction for holding your phone in place (Might not work well for phone/case without smooth surface). Comfortable headband, super face foam protector, ideal heat dissipating design.