5" Smooth Foam Letters and Numbers Smooth Foam Letters and Numbers. Available with all letters A through Z and numbers 0 Through 9. Simply customize your order by clicking customize now. Please only type as many characters as you ordered, or your order may be delayed/cancelled. [Size] Each letter is 5" in height and 1/2" in thickness. Width varies from letter to letter. [Uses] These cute foam letters and shapes can be painted and decorated for the use of party center piece, wall decoration or many other special events, craft projects, office, school, home decor and much more. Easy to color with acrylic paint or add glitter to make it shine. Great for holiday decoration. These letters are also lightweight and durable, and will even float in water for any kind of DIY signage or project.