The parent framework is a piperazine ring (saturated six-membered ring with two nitrogens in para positions). It carries two substituents: 
1. On one nitrogen: a piperidine ring (saturated six-membered ring with one nitrogen), attached through a ring carbon that is para to the nitrogen within the piperidine.
2. On the other nitrogen: a cyclopropylmethyl group, i.e., the nitrogen is bonded to a methylene (-CH2-) that connects to one carbon of a three-membered cyclopropane ring.

No other heteroatoms, double bonds, or stereocenters are present.