Rebecca introduces viewers to the Candle Wick Trimmer by Yield, highlighting its ability to address common candle-related issues. This handy tool helps prevent problems such as black flames, excessively tall flames, black smoke stains on glass candle holders, and fast-burning wax. To use the trimmer, simply blow out the candle, allow it to cool, and then trim the wick down to 1/4th of an inch using the wick trimmer. With these simple steps, users can easily maintain their candles and enjoy a clean and efficient burn. Overall, the Candle Wick Trimmer by Yield offers a practical solution for candle enthusiasts, ensuring a longer-lasting and more enjoyable candle experience.