Morris Products 12026 Piggy Back Disconnect, Double Crimp, Nylon Insulated, Yellow, 12-10 Wire Size, 0.032"X0.250" NEMA Tab  (Pack of 100) Nylon Insulated Double Crimp Piggy Back Disconnects - Nylon Insulated Double Crimp Piggy Back Disconnects for electrical work. Double Crimp Piggyback Disconnects are Nylon Insulated Color Coded insulation for easy identification Manufactured from High Strength Brass Electro-Tin Plated for corrosion resistance