use: It is an part of your electric fencing system is made of non- materials (mostly plastic) of good quality . Alligator clips hold the ground rod well are designed for outdoor use, this lead set will last on the farm for years with good wiring, even in extreme weather conditions. Simple operation: 2 steps to complete the installation: (1) Under the cover, unscrew the red green knobs, you will now see 2 brass peg ends. (2) Match the terminal of the corresponding color of the lead set with the copper nail, then screw the cover back on. Safety Protection: Use to connect farm fence lines, both to protect livestock or within the fence, to prevent livestock or pets from running out of the area, to prevent the invasion of squirrels, , deer, skunks, raccoons other wild animals , for your peace of mind. Size: 3 Ft or 91cm color:Redandblack Material:ABS Package Contents: 2 x Electric Fence Wire Only the above package content, other products are not included. Note: Light reflection different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.