EscodaPerla Series 1436 Short Handle Dagger Striper Artist Watercolor Brush, 1/4", White Toray Filament

How do these compare to the Perla?

The Escoda website does not post the full length of the brush, only the tip. What is the full length when cap is on?

Can I use these brushes for ink art as well?

How long are these when closed?