The Clarinet Case is broadly right practical- to the clarinet to play must not always assemble. But after about a year shook the mouthpiece of my clarinet and we took her to a luthier. To be replaced had to external connections / korkbezogenen parts (cost: just over 100). According to instrument makers the clarinet should always be disassembled so that the cork members can expand again ... When new, this case smelled so by "chemistry" that we let it air out for weeks in the bathroom and in addition einsprühten with Duftspray.