DetailsThis budget priced product is made in Britain. The sieve uses a high quality nylon mesh placed in a black plastic moulded tray. It comes as a set of 6 sieves each with Mesh sizes: 2, 1, 0.5, 0.25, 0.125 and 0.063 mm. The set comes with a lid and a base unite. Ideal for use by students and amateur geologists out in the field.