Plank thickness: 6.0mm 6 colors, Stock in . SPC stands for Stone Plastic Composite which is more durable and more rigid and can better stand up to wear and heavy traffic. Premium 6 series carries lifetime limited 20 years residential warranty and 5 years commercial warranty. It will not wear through, will be free of manufacturing defects and will not rip or tear or permanently indent from normal household use. Fast delivery: 7 Days Delivery After order confirmed.