Amazing Child Montessori Mini Pestle and Mortar A mini pestle and mortar ideal for grinding spices, pills, etc Mortar approx 2.8" (7cm) diameter , 1.6" (4cm) height ; Pestle 2.8" (7cm) length, 0.8" (2cm) diameter at large end Mortar has a roughened interior and glossy exterior. The pestle has a roughened end Porcelain Great for children to practise grinding grains or shells