AST Labs Test Lead Banana Plug Stackable to Alligator Clip Heavy Duty 39" Thick Cable: 39" / 18 AWG / 15 A / Copper core Heavy Duty Alligator Clips: 0.2" jaw opening / 2.3" long Banana Plug: 4 mm, Male, Stackable Great for all electrical and electronic applications Certificate of Authenticity & Lifetime Support