The Norma Kiut Colored Pencils are a set of 24 colored pencils with a 4mm thick core, making them ideal for school art projects. These non-toxic pencils come in a variety of vibrant multicolor options, perfect for adding color to your drawings and letters. The hard case for these pencils ensures durability and protection while on the go, making them a reliable choice for artists and students alike. The HB hardness of these pencils provides a balanced and versatile option for both detailed work and broad strokes.