Slab serif designs have particularly large serifs, and date to the early nineteenth century. They effectively become slab serif designs because of the serifs becoming thick. The result was a slab serif design because of the serifs becoming thick. The principal characteristics of these typefaces are a very low contrast and rectangular slab serifs. Typefaces with serifs are often considered easier to read in long passages than those without. Chancery italics may have backward-pointing serifs or round terminals pointing forwards on the ascenders. The most notable invention was the rise of typefaces with strengthened serifs. They thus have small, triangular serifs or tapering downstrokes. Unlike other sans fonts, the capital letter I retains its serifs. Geometric designs have no bracketing and evenly weighted stems and serifs. The primary logo features the "Bees" wordmark in a Roman font with a metallurgy-inspired serifs. Slab serifs form a large and varied genre. Endurance's design follows the Swiss model of Grotesque sans serifs. The carefully modelled serifs follow an artful logic of asymmetry. However, Egyptian came to refer to slab serifs by the mid and late nineteenth century.