The Woodpecker Blade and the Old Nai Knife are upgrades. Laonai Knife is an old brand of Ningbo Laonai Knife Tools Co., Ltd. Woodpecker blade is a new blade improved and upgraded on the basis of Laonai Knife. Compared with Laonai Knife, Woodpecker blade has been improved to be sharper and easier to use. And it is safe, so the Woodpecker Blade and the Laonai Knife are upgraded.