6.0mm Bullet connectors, 3 male and 3 female. Shrink tubing included. For high amperage applications. One you use these, you'll be much happier than with Deans Ultra. Hint: Make the leads off the battery different lengths to avoide short. Make the Male the Pos lead and leave full length. Make the Neg lead female and cut 1.5" shorter than pos lead to prevent shorting.