Kleine Wolke Sign Tub Safety Mats (14.2x31.5in, Silver) Plastic Imported Plastic construction made in Germany Very durable, heavy weight plastic construction with a contemporary design. The unique design allows water to drain from the intersecting rounds CUSTOMIZE your safety mat. The intersecting rounds make it EASY to cut. Cut out for drain holes or to fit non-rectangular shower pans. Machine washable in warm water with mild detergent. Easy care. Shake out and hang dry after each use to help resist mold and mildew.