··Nylon and glass fiber back (with air mesh) ··40 density high elastic sponge ··1.5 thick electroplate or powder spray pipe quadruped ··Size: 480 * 490 * 850mm ··Net weight: 5.1kg (single chair) ··Gross weight: 28.23kg (5 chairs) ··Package specification: 700 * 650 * 560mm (5 chairs / box)