Anti-slip fixation, stable and secure: Equipped with straps for secure attachment to chairs, preventing sliding or shifting, ensuring a stable seating experience without constant adjustments. Scientific spine protection with U-shaped tailbone design: Tailored U-shaped groove fits the hip curve, offering precise pressure relief for the tailbone area, promoting healthy sitting posture and spine alignment. Upgraded comfort with thickened high-elastic material: Filled with premium slow-rebound sponge, this cushion provides superior thickness and density, effectively dispersing buttock pressure for long-lasting support and comfort akin to sitting on a cloud. Multi-functional and portable for versatile use: Ideal for office chairs, student stools, computer chairs, sofas, hard benches, and car seats. Lightweight with a portable handle for easy transport. Removable and washable cover ensures effortless maintenance. Versatile usage in home and office settings: Perfect for enhancing comfort in the living room, bedroom, or office space. The cushion's adaptable design suits various seating arrangements while maintaining hygienic through easy cleaning options. Item Name: Seat Cushion Material: Cotton Linen Features: Anti-Slip Fixation, High-Elastic, Lightweight Size Details: Diameter: 40cm/15.75" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Seat Cushion