Professional non-slip coating makes it simpler to create the wow. both suited for experts and novices. Firm, hefty metal balls and a special buffer spring on each of the pen's two sides significantly boost its weight, balance, and stability. The ball pen core's interior structure prevents leaks. The elastic soft gum on both sides helps stop the instep from dropping and breaking. With this spinning pen, your fingers will be more flexible and intelligent. Don't think of it as a simple toy! It truly writes just like any other ballpoint pen.