Answer
The name of the compound is -
$bicyclo [4.1.0]heptane$
Work Step by Step
The given compound is a bicyclic alkane. There are 7 carbon atoms in the ring system (-hept). There is a 4 carbon bridge on the left, a 0 carbon bridge in the middle, and a 1 carbon bridge at the right of the structure. Hence, in order of the decreasing size of the bridges, it's name is -
$bicyclo [4.1.0]heptane$.