Get That "Ah" Moment Every Time You Sit Sitting should never be uncomfortable, yet with a sensitive tailbone finding the right position can be tricky. That's why RelaxFusion Coccyx Cushion features a cutout for your tailbone, so you can say "Ah" every time you sit. Dense memory foam support relieves pressure to your spine, while the cooling gel interior prevents your backside from overheating. Sweat-wicking cover is machine washable for easy upkeep. Integrated handle lets you bring RelaxFusion with you when you travel. 17 1/2 "W x 13 3/4 "D x 3" H.