The knobby surface improves blood circulation in the head and neck, relaxes and relieves muscle tension, relieves fatigue and improve sleep quality and is recommended for those who are accustomed to side sleepers • Made of 100% natural latex, it can prevent the growth of bacteria and mites, natural antibacterial and anti-allergic, suitable for use in humid weather in Hong Kong. • The ventilation holes are ventilated and refreshing, soft and comfortable. • Natural latex is naturally degradable and eco-friendly. • Size: approximately 59.5 x 37.5 x 13.5 cm • Cleaning and maintenance: Avoid sun exposure / Do not wash / Do not dry clean / Do not tumble dry / Do not bleach / Do not iron Made in Srilanka