Feature: 1. Reduce Pain: Seat Cushion provides support for the waist and back, effectively relieving chronic back pain, tailbone pain and coccyx pain caused by sitting or driving for a long time. 2. Postural Correction: Chair seat cushion helps promote healthy posture, which reduces pressure on the lower back and promotes proper alignment of the spine. 3. Relieve Pressure: Ergonomic U shape design perfectly fits curve of hip and is optimized to reduce pressure on the tailbone, spine and hips. 4. Breathable Cushion: The outer layer is made of a breathable fabric that allows air to circulate and reduces sweat, great for office chair, gaming chair, dining chair, wheelchair. 5. Memory Foam: Comes with premium high density memory foam with gel layer design. Transforms any hard chair into a super soft and comfortable upgraded seat. Specification: Item Type: Seat Cushion Material: Slow rebound memory foam Color: Black Size: Approx. 45 x 35 x 7cm / 17.7 x 13.8 x 2.8in. Package List: 1 x Seat Cushion