Morris Products 10331 Female Disconnect, Vinyl Insulated, Yellow, 12-10 Wire Size, 0.032"X0.187" NEMA Tab  (Pack of 100) Vinyl Insulated Female Disconnects - Female Vinyl Insulated Disconnects for Electrical Terminations. Female Disconnects are Vinyl Insulated Color Coded insulation for easy identification Manufactured from High Strength Brass Electro-Tin Plated for corrosion resistance