Nylon Insulated Butt Splices - 12-10 awg - Qty. 100 - See thru yellow Nylon insulation is resistant to higher heat and deformation than vinyl splices. Funnel entry to allow for easier wire insertion. Translucent nylon allows for easy inspection of wire connection. Industry standard yellow color coding for 12-10 gauge wire. Rated for up to 600 volts.