CERRXIAN Battery Alligator Clips Black Red Terminal Test Electrical Insulated Battery Clip Clamp for Car Auto Vehicle（2-Pack)

Didn't get instructions with it. Very strong spring and very slippery plastic handle. I don't get how to attach the wire. Crimp the copper down then solder? I will use a small torch on it. Then how do provide strain relief so the wire doesn't get pulled out of handle? Would not buy again.

While connecting the wire to the first clip, the clip broke, I bought the wrong product.

La photo montre pas très bien la grosseur des pinces.... Trip petite pour le travail que J'ai.

good