Keep the color pencils used for Montessori grammar materials organized. & have the key handy - it is printed right on the holder. Pencils are NOT included. Made of buttery white maple, smooth to touch… lovely for little hands to carry! Outside dimensions are 3" x 3" x 4 1/4", & inside dimensions are 2 1/4" x 2 1/4" x 4" Grammar Pencil Holder - Montessori Color Pen