Whether you are a mountain lover, great beer drinker or fine wine enthusiast - this collection of wooden coasters was inspired by the outdoors and created specially for mountain lovers. The Northwest Collection consists of 5 high-quality walnut coasters representing: Mount Rainier Mount Adams Glacier Peak Mount Baker Mount St. Helens Each coaster comes with the mountain name and summit listed on the coaster. All wooden coasters are individually made in the US using real 1/8th in walnut wood. Clean with damp cloth only Roughly L 4" x W 4" - individual coasters vary. The creation process We chose to use walnut because of its hardness. The maps have intricate and small details that require a high-quality material to guarantee the longevity of each coaster. It took nearly two years to design and fine tune all five collections of wooden coasters. We tested several different types of wood and made over 60 iterations before we arrived at a balance of topographic map detail and a great finished product. The process starts with a raw piece of walnut hardwood that we do some prep work to it. Then we run that through the laser, do some post laser work, finish every coaster with linseed oil and add the anti-slip silicon pads.