The wand of Bellatrix Lestrange was 12¾" long, made of Walnut, and had a dragon heartstring core. The wand was constructed by Garrick Ollivander, who described it as "unyielding". Harry Potter Magic Wand with Ollivanders Wand Box and a Metal Core for extra strength and durability. Perfect prop for parties, fancy dress and hobby. High quality wand for die-hard fans with metal core.