Can the lumbar pillow be washed?
The waist support pillowcase can be removed for cleaning, while the inner core is non washable. You can refer to the washing instructions on the washing water label for details
Recommend using this lumbar cushion in a car seat?
Yes. Suitable for over 95% of most car and office seats.
Is it helpful for back pain, tailbone pain/coccyx pain?
The design of a thick lower back and thin upper back encourages proper sitting posture, effectively relieving back pain, coccyx pain, buttocks pain, or back pain.
Will the back cushion flatten after using a long time?
No, it wont. After being flattened, the cushion will recover in 2-3 seconds to maintain it shape.