Oh My Mahjong Mats in TubePlease note that the mats border may not lay completely flush initially but typically flattens out with regular use. We recommend noting the color of the mats border prior to purchase to ensure it meets your expectations. Mats are machine washable and dryer safe. Wash on a gentle cycle and tumble dry. Do not bleach or direct contact iron. For spot cleaning, use a mild detergent and a soft cloth. To maintain vibrant colors, avoid prolonged direct