Abstract: A centralizer is disclosed having outwardly bowed leaf springs held by one or more circular end bands. The end bands have two or more sections which are radially overlapped and snapped together to hold the centralizer about a cylindrical object. The end bands can also include a lock to help prevent separation of the end band sections.Also disclosed is a snap-together method of assembling a centralizer including positioning a first portion of the end band partially around a cylinder, positioning a second portion of the end band partially around the cylinder so as to overlap the first portion, interlocking the portions, pressing to leave the centralizer in position. A projection of one of the portions can be pressed against the other portion to keep the portions interlocked.Further disclosed is a circular band for attachment to a cylindrical object. The circular band has two arcuate portions, one with a radial projection and the other with a hole for receiving and interlocking with the projection.