The first type has more concrete, but a thinner outer frame, while the second type has less concrete, but very thick and strong frame. (fitnessandpower.com)
This elegant, arched mirror features an inner and outer frame finished in antiqued silver leaf with a gray glaze.. (onekingslane.com)
The solid outer frame holding everything together has a pleasant brushed texture, and the chamfers on either side help with gripability. (androidcentral.com)