1. High temperature carbonized natural bamboo material, cool and breathable, smooth and burr-free 2. Made of double-stranded fishing line, super tough 3. Thickened beef tendon, durable and highly elastic, with an astonishing thickness of 3.2mm 4. Silicone non-slip bottom, fixed sofa cushion will not shift 5. 48-hour slow baking process, natural baking color will not fade