Slatz Anti-Slip Roll-Out Thermally-Treated Wood Mat for Bath/Kitchen/Garden (North American Hardwood) (16") Eco-Friendly, Incredibly Strong Thermally-Modified Wood Slats - Won't Rot, Chip, Warp, or Spilnter Positioned with non-slip rubber strips for easy placement and transport Perfect for entryway, bathroom, sauna, or spa - great indoors or outdoors Great for camping - quick drying thermally-treated wood resists rot and lasts up to 25 years. Keep expensive camping gear, clothing, and food dry and off the ground! Machine Cut, Unfinished Wood- For outdoor use, mats should be treated with a an oil-based wood sealant.