This is a shoulder blade cushion. I bought it on Amazon but never used it. A bone-shaped massage cushion perfect for stretching the shoulder blade area. - Color: Black - Features: Design ideal for stretching the shoulder blade area - Usage: Massage device to relieve shoulder stiffness - Shape: Bone-shaped massage cushion - Material: Durable plastic 【Easy Stretching at Home】For those concerned about shoulder stiffness due to long hours of desk work or smartphone use, a shoulder blade stretch pillow is recommended. It relaxes the back and shoulders and is a pressure point health device that can be used easily in a short amount of time. 【Supervised by a Shoulder Blade Specialist Chiropractor】Deeply stretches the shoulder blades and replicates the techniques of a chiropractor. Just by gently rocking, it relieves back stiffness with acupressure. 【Design Based on Human Anatomy】14 protrusions firmly compress the muscles around the shoulder blades. Stretch on the floor and use it in a way that suits you. 【5-Minute Stretch Every Day】Simply lie on it on the floor for 5-10 minutes every day to easily stretch your back. Start with 1 minute and gradually increase the time as you get used to it. 【Perfect for Gifts】A pressure point device that can be easily used after bathing or during relaxation time. Recommended as a health gift for birthdays and anniversaries.