This 3M Scotchlok Color-Coded Small Ring Tongue Terminal lets you easily keep track of wire sizes by color to avoid mix-ups. It fits 1/4-in studs and wire sizes from 12 to 10 AWG. For a tight fit, the terminal has a yellow butted-seam barrel thats insulated with nylon, and its rated 600V for building wire and 1000V for fixtures, signs and luminaires. A stepped design on the flared, nylon-sleeve insulation cuts down on errors during crimping to save you time and money. You can safely use this product in temperatures from -40 to 221 degrees F (-40 to 105 degrees C), and its UL Listed, CSA Certified and RoHS 2011/65/EU Compliant.