Provide Support Two bone shape side of pillow are comfortable place to rest head. Bone shape can stabilize the position of the pillow .Can adjust the height of the pillow by the improved buckle which can rotate the angle. Soft and Safe The fabric is constructed of Sherpa to keep warm and comfortable.Skin-friendly fabric can avoid allergies. The padding of the neck pillow is high quality ployester. After use many times, it still provides enough support and comfort. The largest size 18"L x7"D x 7"H Middle diameter 4 inches.This is the largest bone pillow in the market, Large enough for support head and neck at the same time.