Manufacturer: Hermell Products Inc. Knee support pillow, polyurethane foam. Gently cushion your Knees while sleeping. It is manufactured to conform to the shape of your knees. Great support and comfort during the last trimester of pregnancy. Features: - Made from Visco Elastic memory foam to create an even and balanced support. The memory foam can retain your body heat which helps when you have sore, tired, or inflamed knees. -Gently cushion knees when sleeping on one's side. -Takes pressure off lower back and hips and allows spin to take its natural S shape. -Incorporated adjustable strap, which can be tightened or loosened.