3-5/8 wide and 4 tall these sample chips are the perfect size for submittals and getting a feel for the look and color of a product. Amber Flat Grain unfinished bamboo flooring combines the natural aesthetic of bamboo with warm amber tones. Flat Grain flooring is Smith Fong Bamboo Pure (made with no added formaldehyde) and FloorScore certified and FSC Pure (100% FSC certified).