natural latex sponge cushion for long-sitting work seat cushion office chair cushion window cushion student cushion thickened latex pad 天然乳胶海绵坐垫久坐上班屁垫办公椅垫飘窗垫学生垫子加厚乳胶垫

light pink-square sky blue-square beige-square denim blue-square dark gray-square black-square deep coffee-square wine red-square yellow-square light gray-square orange-square grape purple-square grass green-square light blue color-square beige-square light coffee-square

45x45 thickness 10cm 45x45 thickness 8cm 50x50 thick 5cm 50x50 thick 3cm 40x40 thickness 10cm 40x40 thick 8cm 45x45 thickness 5cm 45x45 thickness 3cm 40x40 thick 5cm 40x40 thick 3cm 20*10*5 (cleaning cotton without cloth cover) 35*24 * 10cm 35*24 * 8cm 35*24 * 3cm 35*24 * 5cm 50x50 thickness 10cm 50x50 thick 8cm