About The Item: Multi-functional Body Support Systemhelp With Post-operative Recovery, Neck, Back And Lumbar Pain Relief, Acid Reflux And Gerd,lower Limb Edema Relief,fatigue Relief And Reading. Adjustable Designincludes Four Separate Pillows: Two Wedge Pillows, One 5" High And One 7" High, And Two Semi-cylindrical Pillows.you Can Form Them Into A Large Wedge Pillow Like Building Blocks And Use Buttons To Hold Them In Place, Or You Can Split Them Up To Support Your Legs, Hips, Waist, Elbows, Et.