Reliable copper construction: Thickened copper ferrules deliver excellent electrical conductivity and improved temperature resistance, ensuring stable, low-resistance connections in demanding environments. Double-wall heat-shrink protection: Each terminal is paired with double-wall shrink tubing that shields connections from moisture, abrasion, and vibration, increasing durability and safety during use. Complete assortment for multiple jobs: 150 pieces in total, supplied in a range of terminal sizes (2, 4, 6, 8 and 10/12) to cover a variety of wiring tasks and wire gauges. Faster, more accurate installation: Pre-cut shrink sleeves save preparation time. The integrated inspection window lets you confirm correct wire insertion before crimping and shrinking, reducing rework. Clear performance advantages: Better conductivity and thermal tolerance from reinforced copper. Mechanical and environmental protection from double-wall shrink tubing. Time savings and fewer installation errors thanks to pre-cut sleeves and inspection windows. Versatile size range to match common wiring needs. Typical applications: Automotive repairs and upgrades — secure battery, ground and accessory connections where temperature and vibration resistance matter. Marine and outdoor equipment — moisture-resistant terminations for wiring exposed to wet or corrosive conditions. Home and industrial electrical work — general wiring, control panels, lighting and appliance repairs that require reliable, neat terminations. What you get: a 150-piece kit of thickened copper terminals with matching double-wall heat-shrink sleeves (pre-cut), supplied in sizes 2, 4, 6, 8 and 10/12 for dependable, easy-to-install wire terminations.