A key part of the Born Learning Trails is the interactive element that ties the sign messages to the trail surroundings. Some of these messages involve shapes, letters, and activities. This reusable stencil with the letters A, B, and C allow for quick and accurate markings to be painted.Stencils measure 3 feet by 3 feet.Made of durable Tyvek material that is washable and reusable. Made in USA.