This product isn't available in English yet — the German description is shown.
Heka Werkzeuge GmbH
Ring brush size. 2 black bristle wooden handle, nickel-plated ring
Ringpinsel Gr. 2 schwarze China-Borste Holzstiel, vernickelter Ring - 014005 - Malerwerkzeuge und Klebebänder - 4018945140053