This is the Games Workshop Space Marines Primaris Repulsor 48-78

This multi-part plastic kit contains the components necessary to assemble a Space Marines Primaris Repulsor, an armoured transport not only capable of ferrying 10 Primaris Space Marines into battle, but also defending itself with the vast array of weaponry at its disposal. 

The Primaris Repulsor comes as 168 components, and includes a transfer sheet and a Citadel 100mm Round base – this features a clear hover stand, which can be set at an angle, adding a certain degree of camber to your model.