Driftweave Mahjong MatExcluded frm all discounts PRE ORDER. Estimated delivery 6 26. Our woven chevron print Mahjong playing mat, the Driftweave, is the backbone of the table. Bold, graphic, and unmistakably Haus of Tiles, it's designed to make an impact without overpowering the game. Statement worthy, but never chaotic. Sized at 31" 31" and crafted from heavy duty neoprene, each mat delivers a substantial playing surface that stays put and softens tile sound. Designed to