Shimano Cassette - 7 Speed

Give your bike some love this spring!

For some reason, I thought I needed a 7-speed cassette when my bike clearly called for an 8. Installed on my bike before I realized this, but otherwise unused, all pieces included in box. 12-32T

MEC sells this for $18 new. Not looking for too much for this - BTZ or trade for bike repair tools preferred.