This is a beginner's knife for children from Kai Corporation. It seems suitable for elementary school children, around the lower grades, who are using a knife for the first time. Size: Overall length 219 x blade width 42 x handle height 15mm, Blade length 125mm, blade thickness 1.5mm ■Materials Blade: Stainless steel (double-edged blade) Handle: ABS resin (heat resistant up to 100°C) ■Seller Kai Corporation, Made in Japan It cost around 2300 yen.