Description: Material: Polyester cotton Size: 52 * 42 * 17cm/20.47 * 16.54 * 6.7inch Color: sky blue/white/light gray Feature: 1. Strong support: It can effectively support the arms and shoulders, reduce stress, and improve sleep comfort. 2. Relieve pain: Helps alleviate shoulder and neck pain, suitable for side sleepers. 3. Soft material: Made of high elasticity memory cotton material, it has a comfortable touch and fits the curves of the body. 4. Improve sleeping posture: Help maintain a natural sleeping posture, reduce the number of flips, and improve sleep quality. 5. Widely applicable: Not only suitable for the general population, but also for people with shoulder and neck discomfort or numbness in the arms. Attention: 1.Due to manual measurement, there may be a 1-3mm error in product dimensions. 2.The color of the product may have errors due to objective reasons, and the actual product is the main focus. The product includes: 1 * arm side lying pillow