The dictionary defines Sinister as threatening, menacing, frightening, and terrifying. Those are the emotions the opposing player will feel when one uses these cues. GLD used stainless steel joints, Irish linen wraps, Canadian Maple butts and shafts. Other include ABS joints, Canadian Maple butts and shafts and 13mm leather tips. These are all tied up into a 3 year warranty. When you look across the table and look into your opponent's eyes, you'll understand what Sinister means.