As the back is inevitable, we had to shop for school for my child. For me, making purchases online is a simple, plus I like to do my shopping on the amazon site. This package offers many coleurs. Learning through the colors, I think it is an effective teaching method. This package contains the colors that can be used, I think it misses no color, so this is perfect. Pens are qualitative, with no negative comments! My child loved the gift, I think control other products for school so I recommend this product! Good buy.