MFM TOYS Sandpaper Letters Flashcards help with Number recognition and Learning the strokes of the shape. Tactile number cards are an amazing way to help kids explore maths numerals. Tactile means connecting with the sense of touch, so these Number cards are designed for kids to explore the Numerals using their fingers. When they trace the Numeral, they are learning the strokes and shape of the Number to prepare them for writing numerals in the future. It's a great sensory activity as well. Beginning readers and special needs students will benefit from the tactile experience of these number cards. These cards are covered with fine sand and help students make the connection between the physical movement of forming numbers and the actual shapes.