Inflatable adjustable air volume lets users customise cushion firmness for comfortable sitting posture. Hollow centre design reduces direct compression on coccyx, haemorrhoid and tailbone sensitive areas. Light portable structure is easy to carry for office, car seat and long journey daily use. Soft smooth surface avoids skin irritation while easing back and sciatica sitting discomfort. Simple inflation setup allows quick adjustment to match personal body pressure demands. | NESTLUNE Inflatable Coccyx Cushion Tailbone Sciatica in Grey | Size: 100 cm x 190 cm