Twecotong® Electrode Holders, 200A, Plastic Copper, For 2 0 Cable, 4 mm Capacity no checkout Specially engineered for professional use Mercury free Specially engineered for professional use Mercury free formula Reclosable container helps organize and protect batteries from damage and short circuiting high density tape Provides a highly resistant seal on pipe threads for all types of service Suitable for use with solvents One piece ergonomic handle fits comfortably in the palm and minimizes hand fatigue Features fully insulated and protected springs Reversible top and bottom insulators are constructed of quality thermo set materialfor strength and durability at high temperatures Six position jaw pattern securely holds electrode in place