Comfortable, stable back support for bed, sofa, or chair Why you need it: Provides firm, reliable lumbar and back support so you can read, watch TV, work, or relax without straining your back. The cushion helps maintain a comfortable upright position and reduces pressure when sitting for extended periods. What makes it effective: quality polyester fiber filling keeps the cushion supportive and resilient, while the soft crystal velvet cover adds a pleasant, breathable surface that works in all seasons. Key features Supportive filling: Polyester fiber interior delivers stable, even back support and maintains shape over time. Soft, durable cover: Crystal velvet fabric feels gentle against skin, is breathable and suitable for yearround use. Clean, neat design: Invisible zipper and independent inner core give a tidy exterior and allow easy removal of the cover. Easy care: Unzip and remove the inner core; the pillow cover is machine washable for convenient cleaning. Versatile use: Designed for use on beds, sofas, office chairs and in vehicles — practical wherever extra back support is needed. Use scenarios Reading or watching TV in bed: Prop the cushion against the headboard for upright, comfortable support while you read or stream. Working at home or in the office: Place behind your lower back for better posture during long seated sessions. Road trips or naps: Use in a car or on a couch to reduce fatigue and improve comfort when driving or resting. Materials and compatibility Filling: quality polyester fiber Cover: Crystal velvet (soft, breathable, durable) Design: Independent inner core with invisible zipper; cover is machine washable Suitable for: Beds, sofas, chairs, cars; universal for all seasons What you get A supportive backrest cushion with removable, machinewashable cover that combines comfort, durability, and a clean appearance for everyday use.