Combo offer now available at an attractive price - Chopping board & Montessori knives in both the sizes - Mini & Standard. Mini Knife is suitable for the age group 1.5 years to 4 years; Standard knife is suitable for the age group 4 years to 12 years Material: Mango wood with a smooth, food safe finish. No lead or harmful adhesives used. Cleaning Tips: Wash like a normal utensil and air dry; avoid scrubbing with hard brushes.