Sieral 4 Pack Chair Foam Cushion Replacement, 18"x18"x2" Upholstery Foam High Density Chair Seat Pad with Polyester, Firm Square Insert for Dining Chairs & Couch, Easy to Cut

Features: Structured Firmness for Everyday Seating The combination of high density foam core and polyester surface layers creates a structured yet comfortable seating feel. This chair seat foam pad replacement maintains consistent shape during regular use and supports stable positioning, helping restore seating balance without excessive softness Precision Size Fit Each 18x18x2 foam cushion is designed with consistent dimensions to fit standard square seating frames. The square foam insert format works effectively for dining chair foam replacement and other upholstery projects, supporting proper alignment and improved seating structure. Specifications: Material: polyester and foam Color: white and yellow Size: 18 x 18 x 2 inches/ 45 x 45 x 5 cm Package includes: 4 x Upholstery foam Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays

• Three-layer Structure: this 4 pack chair foam cushion replacement features a three-layer construction; The top and bottom layers are made of soft polyester fiber, while the center is filled with high-resilience foam; This structure provides reliable support along with a comfortable cushioning effect; The polyester surface feels gentle against the skin, helping enhance comfort during extended sitting periods
• High Density Foam: the 18x18x2 inch upholstery foam is built with 2.5 density and 44 ILD compression strength for stable seating performance; This firm seat cushion foam helps reduce sagging and maintains consistent support for dining chairs, office chairs, and couches; The balanced resilience helps extend the functional life of your seating surfaces under regular daily use
• DIY Cuttable Square Foam Design: designed for customization, this square foam insert can be trimmed to match various chair shapes and sizes; Whether updating old dining chairs or creating a personalized seating project, the cuttable design allows flexible adjustments; The 2 inch chair cushion foam adapts easily to different furniture frames without complicated tools
• Versatile Application for Multiple Seating Areas: suitable for dining chairs, office chairs, sofas, benches, and other seating surfaces, this upholstery foam can be used as a cushion insert or general furniture padding; It combines comfort and structural support, making it practical for residential spaces, restaurants, and workspace seating environments
• Compressed Packaging with 48-hour Expansion: the foam is compressed and rolled for shipping efficiency; After opening the package, carefully remove and unfold the foam without using sharp tools to avoid damage; Allow up to 48 hours for the 18x18x2 foam cushion to fully expand to its original size; Please complete the expansion process before trimming or installation