We bought 5 cases of "Pack of five cardboard kits" for a Dulcimer build adult program at our Library. They were packed and counted very professionally and every piece was there. Looking at all the pieces, their "quality control" is impeccable. High quality, even for a cardboard kit. I assembled one my self and it plays very well. I am a Classical Guitar, and Mandolin teacher for 21 years. I know quality. If you want to start a program, like this in your community or school, these kits are the way to go. Customer service is easy to get hold of too. Give these kits a try, you won't be sorry.