memory foam hemorrhoid stone cushion office cushion long-sitting no collapse summer breathable chair seat cushion hip-lifting coccyx cushion thickened 记忆棉痔疮垫办公室坐垫久坐不塌夏透气椅子屁垫美臀尾椎座垫加厚

dark gray [interloop] green [interloop] pink [interloop] orange [interloop] light gray mixed with dark gray [interloop] light gray splicing pink [interloop] light gray with green [interloop] light gray with orange [interloop] 3d mesh light gray paired with dark gray 3d mesh light gray with black accents 3d mesh light gray splicing pink 3d mesh light gray with navy blue stitching crystal velvet navy blue crystal velvet dark gray crystal velvet pink crystal velvet yellow crystal sky blue

42*37.5*9.5cm [comfortable for prolonged sitting]