Natural Rubber Graphene Pillow Core Two-way Concave Fitting Cervical Vertebrae Neck Pillow Features: NATURAL RUBBER: Our natural pillows are made of natural rubber, without any additives or inferior materials, ensuring your sleeping environment is comfortable. Breathable and comfortable: The particles inside the pillow have good breathability, can effectively dissipate body heat, keep the head cool and dry, and provide a comfortable sleeping experience. Personalized support: The pillow filled with particles has good elasticity and support, can provide personalized support according to the shape and weight of your head, relieve the pressure on the neck and shoulders, and let you enjoy a more comfortable sleep. Knitted Cotton Fabric: We have adopted the excellent knitted cotton material to ensure that the pillow feels soft and comfortable, is close to the skin and breathable, has good durability and stability, is not easy to deform or collapse, and can maintain shape and support for a long time. Removable and washable design: The pillow cover adopts a removable and washable design, which is convenient for cleaning and maintenance, keeps the pillow clean and sanitary, and prolongs its service life. At the same time, we provide a variety of sizes to meet the needs of different people. Product Description: SizeSmall size: 30*50cm, medium size: 40*60cm, large size: 45*70cm WeightSmall size 700g, medium size 1300g, large size 1900g Include1Pillow