Model of Volcano 43 x 43 x 17cmVolcano cross-section showing magma movement.Why this product is beneficial for educational use:Explains volcanic activity.Classroom ideas:Eruption demonstrations.Specifications:**Size:** 43 x 43 x 17 cm.Model of Volcano 43 x 43 x 17cm$219.95PriceQuantity*3-5 daysPre-Order