Features： 1、COMFORTABLE MATERIAL: Compression back board is supported by foam with a soft and comfortable texture, making it more comfortable to fit your waist. 2、PREVENTS FLUID RETENTION: Lumbar back board will help prevent fluid retention and provide you with a quick and easy way to feel comfortable again. 3、PROVIDES SUPPORT: Foam back board provides you with back support, defends your skin and helps you through the recovery process after these types of procedures. 4、INVISIBLE: When the lumbar backboard is in use, no bulge is visible at all, it is invisible and provides support for your lumbar spine at all times, making it your invisible guardian. 5、SMALL AND CONVENIENT: Lumbar molder back board small size and light weight, occupy little space when using, suitable for use at home, but also can be carried to outdoor use. Specification： Item Type: Foam Back Board Material: Foam Product Size: Approx. 22.5 x 15cm / 8.9 x 5.9in Function: Helps Reduce Swelling and Prevents Fluid Retention in the Waist Package List： 1 x Foam Back Board