Happilar Thick Bamboo Cutting Board 3 Sets 17 Inches with Cross End Cutting board is strong and durable with cross end, high quality, but will not dull your knives Constructed of high quality bamboo which is harvested at the optimum age of 5 years,FDA approved Easy to maintain; wash with warm water,revitalizing Oil to extend life and beauty This cutting board set has three sizes which will suit all applications within your kitchen: 1 large (17-3/4" by11"), 1 medium (15-3/8" by 9-7/8") and 1 small board (11-7/8" x 7-7/8"). All these boards are 0.6" thick which makes for easy storage Round side, comfortable and don't hurt your hand.