Selected Materials This downward-facing pillow is made of natural high-quality pp cotton and velvet fabric, which is skin-friendly and soft and very comfortable to use. Can Put Arm in This soft nap donut pillow can be put in the hand, it is hollow in design, so as not to numb the arm during nap and sleep sweeter. Avoid Headaches This desk pillow for nap can avoid soreness of the head and spine, and it is designed to increase the inclination surface, which can help maintain a good sleeping posture. Center Hole Ventilation Design This nap sleep pillow is designed with a central hole for ventilation and can also be hung on a chair and used as a cushion. Does Not Take Up Space This downward-facing pillow for sleeping does not take up too much space, is small and light, very easy and portable, and also very easy to store. Specification: Material: Velvet Size: About 32*22*13cm/12.60*8.66*5.13in Inner core: High-quality PP cotton List: Nap sleep pillow*1 Note: 1. Please allow 1-3 cm (0.4-1.18 \") difference due to manual measurement and slight color variation for different display settings. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.