World"s most accuarate hand held manual liquor measure jigger head provides clean directed pour streams * Trilobal shape reduces or eliminates the surface lens or meniscus that natuarally forms on the top of a fully filled jigger * Made of shatter proof poly carbonate * Angled Jigger head provides clean directed pour streams * Angled jigger head provides clean directed pour streams pour edges eliminates hand shake loss transfer of alcohol from jigger to glass/cocktail tin