The Challah knife is used on Shabbat and Holidays to cut the two ritual Challas resting on the table. It is traditionally a decorative item as it is meant to enhance the Shabbat table. The electroplated ones are expecially designed not to lose their color or peel and look just like silver. The Israeli artist ones include aluminum ones by Dorit Klein with beautifully cut out wheat or pomegranate designs, some with the appropriate blessing carved out on them. The super cutting edge (pun intended) knives by Agayof are in vivid shades and sleek designs.