ITEM NAME:70 Copper Tube Terminal Set Battery Welding Cable Lug Ring Crimp Connectors To3C 70pcs Open Barrel Copper Ring Lug Terminals Assortment Kit Includes OT 10A 20A 30A 40A 50A Made of high quality pure copper material, good conductivity Widely used in the electrical wire connecting Comes with a box for easy storage and carrying Specification: OT-10A *Wire Section: 1.5-4mm2 *Overall Length: 15mm *Tail Length: 6.4mm *Ring Diameter: 5.3mm (Inner), 9.2mm (outer) *Quantity: 20pcs OT-20A *Wire Section: 1.5-6mm ² *Overall Length: 22.7mm *Tail Length: 7.4mm *Ring Diameter: 6.3mm (Inner), 11.2mm (outer) *Quantity: 20pcs OT-30A *Wire Section: 2.5-6mm ² *Overall Length: 25mm *Tail Length: 8.5mm *Ring Diameter: 6.3mm (Inner), 12mm (outer) *Quantity: 10pcs OT-40A *Wire Section: 4-10mm ² *Overall Length: 25.5mm *Tail Length: 8.6mm *Ring Diameter: 6.3mm (Inner), 12mm (outer) *Quantity: 10pcs OT-50A *Wire Section: 4-10mm ² *Overall Length: 28mm *Tail Length: 9mm *Ring Diameter: 6.3mm (Inner), 13mm (outer) *Quantity: 10pcs Package: 70pcs/set.Made of high quality pure copper material, good conductivity. Wire Section: 1.5-4mm2. Widely used in the electrical wire connecting. Wire Section: 1.5-6mm ². Wire Section: 2.5-6mm ². Wire Section: 4-10mm ².