Sealey booster cables 5m 600a 25mm sup2 heavy duty clamps sealey bc25 5 hd large oversized clamps help prevent power loss through the heavy duty 25mm stranded copper cable cables resistant to grease oil and most acids suitable for cars light commercial hgv psv marine and agricultural applications bought by professional users for 27 seasons this set has a proven reputation for quality and value sealey bc25 5 hd booster cables 5 0mtr 600amp 25mm heavy duty clamps