30 Pack Watertight Heat-shrink Ring Terminals Tinned Copper For Maximum Current Flow Heat Shrink To Create An Instant Water-Resistant Seal Organized Storage Case Color Coded To Industry Standards with An Approximately 1/8 to 3/16" Diameter Stud Hole Set Includes: (10 each) 10-12 AWG, (10each) 14-16 AWG, (10 each) 18-22 AWG