Good quality, love my Colwood Super Pro burner ! Also the fixed tip pens are good, but the most I use is the SRS FT. I want to order more replaceable tips, but there is no way to choose the bent and polished option, no menu to select. So I got the straight replaceable WB-J tip. I tried to bend it a little bit, and it worked well for a few months, until it broke. I would like to order another one or is it another version close to the J tip shape, but also bent? Thank you.