This large left handed hook was made in 1986 out of 4.2 mm Paxolin material and painted on both surfaces. Volker made this boomerang as a custom lefty for me. It is marked as #21 and it is a mirror image replica of the Challenger III that he used to set a World Record in Long Distance at 150+ metres. This was reported in MHR. Although Volker could throw his for 150 metres, I was only capable of doing 110-120 metres with this one, but it is a stable and forgiving lefty LD boomerang and it has been part of my personal throw kit for almost 40 years. I can throw this one in calm or wind. Although I have thrown it thousands of time,s it has only light wear and no cracks or dings. I has been one of the more important boomerangs in my personal throw kit and I hate to let it go, but I can no longer throw it because of age and loss of vision. I do prefer these large and heavy Challenger IIIs to the small and thin G12 versions that Volker made decades later.