Extrathick comfort: 12.5 cm (5inch) elastic pearl cotton seat cushion delivers strong rebound and pressure relief, supporting a comfortable, ergonomic sitting posture and reducing fatigue during long use. Builtin back pillow combination: Seat cushion and back pillow are designed to work together for consistent support and improved posture on benches, chairs, or swivel rattan seats. Durable, weatherready materials: Made from 100% quality soft cotton and polyester fiber that is nonfading, waterproof, breathable, and sunproof — suitable for both indoor and outdoor use. Secure, nonslip fit: Antiskid particle backing reduces slipping and four pairs of straps on the backrest secure the cushion to bench or chair backs so the cushion stays in place. Versatile styling: Neutral, modern design refreshes wooden benches, patio furniture, and rattan swivel chairs without needing replacement furniture; adds comfort and visual appeal to terraces, balconies, and gardens. Practical details Thickness: 12.5 cm / 5 inches of elastic pearl cotton for resilient cushioning. Material: 100% quality soft cotton and polyester fiber cover and fill — breathable, waterresistant, sunresistant, and colorfast. Fixing: Antislip particle backing plus 4 pairs of straps for reliable attachment to bench and chair backrests. Use scenarios Patio and garden seating: Add cushion and back support to a wooden bench or rattan sofa for comfortable outdoor lounging, reading, or entertaining. Balcony or terrace dining: Use on dining benches or swivel rattan chairs to improve comfort during meals and extend seating time without discomfort. Indoor casual seating: Place on entryway benches, window seats, or sunrooms to combine style and comfort while protecting the bench surface. Why customers choose this cushion Immediate comfort upgrade: Thick, resilience fill reduces pressure and improves sitting posture right away. Built to last outdoors: Weatherresistant materials and secure attachment mean the cushion stays functional and looking good in outdoor settings. Easy to install and maintain: Straps keep the cushion stable; breathable, durable fabric resists fading and wear. Compatibility note Designed for benches, wooden benches, swivel rattan chairs, and similar indoor/outdoor seating. Thickness specification: 12.5 cm / 5 inches.