Heavy Duty SMART Clamps for use with the Micro-Start XP-10 or XP-10-HD. The HD Clamps are larger and stronger, made for commercial and daily use by mechanics or those often starting larger vehicles. Features 5 built-in protections to safely jump-start vehicles!SMART CLAMPS HEAVY DUTYThe HEAVY DUTY Smart-Clamps for the MICRO-START XP-10 were specifically designed for mechanics and tough use. They offer unbreakable all copper construction, have much stronger clamping strength, and larger Clamp area for more contact with those Autos, Truck and Boat Battery Terminals. If you do more than emergency...