Outer fabric: comfortable elastic fabricProduct name: Car plug-in massage lumbar supportInternal filling: molded spongeProduct size: 33 * 30 * 10 cmMassager voltage: 12VProduct Process: Green Heart Knitting ProcessSoft rebound particles: Using comfortable massage frequency, the contact surface is covered with a large number of massage cylinders to make it softer and more comfortable.Soft and comfortable fabric: soft fabric is selected as the main material, stain-resistant, durable and comfortable to the touch, not easy to wrinkle and break.Embracing design on both sides, fit to set off the muscles on both sides.Universal fit for most cars, trucks and SUVs.Reduce the pressure of waist， Electric massage, adjustable strength.The waist is designed as hugging around the shape, 3D curvesupport, comfortable support ridge protection.