Fangrui Product Details Fangrui Product Details Material: The Material Of This Cervical Pillow Pillow Is Polyurethane Memory Foam, The Outer Coat Material Is Polyester Fiber + Lyocell Fiber, And The Inner Cover Material Is White Sweatcloth, Which Is High Quality And Durable Size: The Size Of This Cervical Pillow Is 62x41x11x13cm, Both Ends Can Sleep, High And Low Pillow Surface Can Be Freely Selected, 8cm Low Pillow Area Is Recommended For People Below 165cm Or Like To Sleep On Their Backs, 10cm High Pillow Area Is Recommended For People Above 165cm Or Like To Sleep On The Side Armrest Design: This Cervical Pillow Features An Armrest Design To Provide A Natural Resting Position For Your Arm And Eliminate Arm Numbness. The Unique Butterfly Pillow Design Provides Plenty Of Space For Your Neck And Shoulders. High-quality Slow Rebound Function: This Cervical Pillow Can Effectively Sense The Weight Of The Head Within 3-8 Seconds To Support The Neck And Sink Down To The Suspended Sleep Position, Care For The Cervical Spine, Avoid Secondary Damage, Maintain