Slow Rebound Memory Foam 𝗜𝗻𝘀𝘁𝗮𝗻𝘁 𝗥𝗲𝗹𝗶𝗲𝗳 𝗙𝗿𝗼𝗺: Hemorrhoids, hip bursitis, broken tailbone, herniated discs, bed sores, anal fissures, ischial tuberosity, fractured coccyx, pressure related to childbirth, Brazilian butt lift (BBL) and vaginal surgery, and sitting for long periods of time that can cause lower back, hip, leg pain 𝗘𝗿𝗴𝗼𝗻𝗼𝗺𝗶𝗰 𝗗𝗲𝘀𝗶𝗴𝗻: Shaped like a doughnut with an ergonomic “U” shaped cutout, our butt pillow conforms to lower body contours providing natural support with little to no pressure on your most sensitive areas 𝗙𝗶𝗿𝗺 𝗮𝗻𝗱 𝗦𝘂𝗽𝗽𝗼𝗿𝘁𝗶𝘃𝗲 𝗙𝗼𝗮𝗺 𝗖𝗼𝗿𝗲: The 5 Stars United round seat pillow may feel firm initially, but it is heat reactive, which means it will soften once it absorbs heat from your body 𝗞𝗲𝘆 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀: Tailbone pain relief cushion is large enough for all at 45 x 36 x 7.5 cm. It's a wonderful fit for an adult with body weight up to 110 kg. The sciatica pain relief pillow has a non-skid backing that prevents slippage. Our coccyx cushion has a breathable mesh cover that doesn't trap heat, so you sit comfortable and cool. The donut seat cover is removable and machine washable 𝗙𝗶𝘁𝘀 𝗠𝗼𝘀𝘁 𝗖𝗵𝗮𝗶𝗿𝘀 𝗮𝗻𝗱 𝗦𝗲𝗮𝘁𝘀: This sitting donut pillow fits most office chairs, gaming chairs, desk chairs, computer chairs, standard dining chairs, couches, wheelchairs, and recliners. Must have accessory if you are working from home