Morris Products 10414 Male and Female Disconnect, Nylon Fully Insulated, Yellow, 12-10 Wire Size, 0.25" X 0.032" NEMA Tab  (Pack of 100) Nylon Fully Insulated Disconnects - Male and Female - These Male and Female Disconnects are Nylon Insulated. Fully Insulated Male and Female Disconnects feature Nylon Insulation Color Coded insulation for easy identification Manufactured from High Strength Brass Electro-Tin Plated for corrosion resistance