Premium 100% Memory Foam<br />SEAT COMFORTABLE: Premium memory foam seat cushion provides instant comfort on any hard surface， Allows for hours of sitting without experiencing any pain， aches， fatigue or soreness with office chair， desk chair， kitchen， car seat， airplane， or wheelchairs.<br /><br />ZERO PAIN: Assists in the relief and treatment of lower back pain， numbness， sciatica， and pressure sores. Promote a healthy sitting posture and reduces pressure on the coccyx， tailbone and hip bones while sitting or driving.<br /><br />HEALTHY HOLLOW CENTER DESIGHN: Center hollow space for ventilation， prevent bacterial propagation， Also no pressure for genitals and buttock. Healthy for hemorrhoids， prostatitis， post delivery recovery for mothers and other perineal and pelvic floor disorders.<br /><br />UNIQUE HIP CRADLE: Our curve fitting cushion hugs the thighs relieving hip pressure and pain and promotes proper spinal alignment and posture. The tapered lower front prevents leg numbness due to poor blood circulation.<br /><br />DURABLE AND BREATHABLE: made of breathable material， also the soft and breathable airy mesh cover keeps you cool and dry over prolonged periods of use. And the 3D mesh zip cover is easy to remove and clean. <br /><br /><br />Size: approx.45×38×13/2.5cm   17.7*15*5.1<br />Color: Black/Grey<br />Weight: approx 0.8kg<br /><br />Package:<br />1*memory foam cushion(without retail box)