Item Type: Lumbar Backboard Material: Foam Product Size: Approx. 22.5 x 15cm / 8.9 x 5.9in (there is a 1 to 2cm/0.4in to 0.8in error in manual measurement) What It Does: Helps Reduce Fluid Retention, Skin Folds, Post Operative Swelling, Bruising and Scarring by Placing Glossy, Even Pressure on the Sucking Area. Package List 1 x Lumbar Backboard There is a 1 to 2cm/0.4in to 0.8in Error in Manual Measurement 1Support Protection: The lumbar backboard provides you with uninterrupted lumbar and back support and protection, keeping your lumbar spine even pressure 2Good Elasticity: The foam back board has good elasticity and can provide strong support for your waist and back without leaving marks 3Reducing Swelling: The lumbar back board can help you reduce swelling and prevent inflammation and other problems from fluid retention 4Convenient and Practical: The lumbar molder back board can support your lumbar spine anytime and anywhere without seeing any raised parts during use 5Scope of Application: The compression back board is suitable for those undergoing abdominal surgery, providing gentle compression treatment area, reducing pain