The 3 parts are easy to assemble for immediate use.
Adjustable Headgear The lightweight, breathable headgear is easy to adjust with clips and velcro tabs to easily find the perfect, secure fit that won't keep you awake. Fisher & Paykel Simplus™ Full Face CPAP Mask | Fit Pack | Gray Already know what size mask cushion you're looking for? Comfortably fall asleep faster tonight! F&P Simplus CPAP Mask Benefits Lightweight and comfortable ErgoForm Headgear Easy-Clip Frame for easy assembly Advanced, minimal design The F&P Simplus CPAP Mask comes with a frame, headgear, and cushion to provide a simple, yet effective design to maximize comfort and efficiency.