**Welcome to my shop, please enjoy** Hug it for comfort and healthy. Car Seat Lumbar Support Office Chair Low Back Cushion Pillow Waist Protection Memory Cotton Black Car Product Posture Correction Name: car pillow for back Material: 100% high quality space memory foam filling and polyester cover Size: the width: high:31cm, low 38cm the thick: low side:14cm, low middle thick 8cm. High thick is 5cm The height: 43cm Allow some size error,thanks. Color: black, beige, grey, purple. Popular color is black. Design: fit body spine curve. Function: 1. Support Back, support the whole back, especially the low waist and the waist side. Due to the thick sides, it can brace the waist. -Posture correction, The lumbar spine is not good, there are several reasons. Long-term sedentary, tired, lifting heavy objects. Sedentary posture is not right to damage the waist. This lumbar fit body curve, use it can push you to correct sitting posture. -long time use, the high quality memory foam can use for years, it has been provinced by our more than 100 thousands cutomer. USE for car seat, chair, office chair, wheelchair, students chair. Especially good for low waist pain people