The Dapper Snapper consists of a short piece of suspender elastic with snaps that fits in the back 3 belt loops of the child's pants and snaps over the outer 2 loops to cinch the pants thereby keeping them from falling down.
The only difference between Boys Belts and Girls Belts is a matter of color choice. Most parents wouldn't choose to put a pink and brown flowered Dapper Snapper on their son, but it's your choice. As far as Kids belts go, you can't go wrong with Dapper Snappers!
Dapper Snappers work on any pants with belt loops, even adjustable waist pants.