Bob Kramer is widely recognized for his extremely sharp high performing carbon steel knives. To keep these knives maintained and sharp, Bob Kramer by Zwilling introduced an entire collection of water stones and accessories. This bamboo sink bridge is convenient and creates an ideal work station to place right over the kitchen sink. The water stone & sink bridge are adjustable. The water stone holder will adjust to hold stones up to 10.25" long, and the sink bridge will adjust to fit various sink sizes, (24" when fully extended).