These bamboo salad serving spoons are stronger than wood and will not swell, split, or absorb moisture.Set of 2.Hand clean with warm water and mild detergent; dishwasher cleaning not recommended. Bamboo is a grass that functions as a single plant, self-propagating as it spreads horizontally underground. It continually sends up new shoots, naturally replenishing itself and making it one of the most renewable resources known. Bamboo is not harmed by harvesting and can grow into mature fibre in three to seven years. It is more durable and 16% harder than maple, and a third lighter in weight than oak. Bamboo holds the promise of a sustainable, cost-effective, and ecologically responsible alternative to wood.