This pillow provides a comfortable sleep experience that fits the neck, made with a patented resin structure. - Product Name: Sleep Enrich Neck Free Pillow - Size: 37.5cm x 62cm x 11.5cm - Material: 100% Polyester - Weight: Approximately 660g - Cover Size: 37.5cm x 62cm x 12.5cm - Cover Material: Polyester - Country of Origin: Japan Neck free pillow using a special foam material with snoring reduction function. I used it once, but the height didn't suit me, so I'm selling it. I think it's similar to the Brain Sleep Pillow. - Included: Pillow cover (unused) Thank you for viewing.