(?) "Complete" fixtures include both the Trim Kit and the required Rough-in Valve necessary for installation. The valve is the part that installs in your deck or wall and connects to the hot and cold water lines in your home. A "Trim Kit" is great if you already have the valve and just need the part you see (the trim).
The Milano collection combines some popular features of other collections but has its own unique twist. The focus here is the handle. The typical smooth cylindrical handle offered by many manufacturers is the inspiration for the Milano handle. The difference however is the small decorative ring ridges near the handle base. These rings are found on the matching pop-up drain rod as well. Design is in the details and the Milano collection does a superb job.