Gino 2 Pcs Spare Part Adjustale Copper Battery Terminal Clamps

• Product Name : Car Battery Connector;Material : Copper
• Color : Gold Tone;Thread Diameter : 6.5mm, 5.7mm, 5.7mm
• Hole Diameter : 16mm / 0.63";Total Size : 3.7 x 3.1 x 1.7cm / 1.4" x 1.2" x 0.67"(L*W*H)
• Net Weight : 83g
• Package Content : 2 x Car Battery Connector

I tried these on a motor-home since I needed to attach different wire types. The hole for the main cables was just right to handle the big cables. Others I've used wouldn't accommodate 2/0 wire but these did.