Flyers can be very informative, and can come in various sizes. Two-sided printing is also available.
Standard sizes are:
2.5" x 4", 3.75" x 8.25", 4" x 6", 4.2" x 5.5", 5" x 7", 5.5" x 8.5", 6" x 6", 8" x 8", 8.5" x 11", 11" x 17"
You can choose from a glossy or matte paper stock.
If your flyer will have color images and photos, glossy would be the best choice. It has a reflective, shiny finish.
Matte stock has less glare with a smoother appearance.
80-lb stock would be equivalent to a page out of a magazine.
100-lb stock would be similar to kids books or art books.
100-110-lb cover would be equivalent to an invitation or poster.
115-lb cover is sturdier such as product packaging