Currently we are only selling these tins in 8oz. However, we have noted that there is an interest in other sizes as well, and will look into making a wider selection available soon.
Wicks with a minimum length of 2.75in (7 cm) work great as you can always cut it to your preferred length. You can use any type of wick in True Candle tins - we suggest cotton or wooden wicks. Hope that answers your question, and please feel free to reach out if you have any other questions!