Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great slide

This slide gives a dull sound when compared to a twangy metal slide. It is great for electric or acoustic guitar. It is sturdy and short. It is thick and your finger might start to sweat a little when using it for a while. I prefer the sound of the glass to the metal slide. I would recommend it. Don't forget to tune your guitar to an open tuning when using it for most songs.