Easy Size Adjustment: Featuring a round rotary knob for easy sizing adjustments, this Oculus 3 elite strap is suitable for both adults and children with a head circumference of 17.7-29.5 inches. Children can easily adjust it themselves for a secure fit. Reduce Facial Pressure: The unique gravity balance design reduces facial pressure by 40% through 4-point weight distribution system, while the 360° rotatable knob enables micro-adjustments to eliminate forehead marks after 2-hour VR sessions. COMPATIBILITY: Specifically designed to fit Meta Quest 3S, Quest 3, Quest 2, and Vision Pro VR headsets with dedicated compartments PROTECTION: Hard shell exterior construction provides maximum protection against impacts, drops, and scratches during transport