What's Sejjil, 'dancing missile' that Iran used for 1st time in war with US-Israel?

Iran on Sunday fired Sejjil ballistic missiles for the first time since the war with US-Israel began. It is a two-stage, solid-fuel medium-range ballistic missile with an estimated range of about 2,000 kilometres with a payload capacity of roughly 700 kilograms. The Sejjil is nicknamed the 'dancing missile' for its high-altitude manoeuvring ability and capability to evade missile defence systems.