There are 4 seperate pieces that you have to put together for each egg. Some of the pieces had plastic thaI had to clip off with nail clippers. There was no info of how to use them except to drop your egg in and srew on the fourth piece to cap it off. They leaked even though I tightened them as far as they would go. To wash them is very difficult with 4 pieces to try to get egg out of and 4X6 means 24 peices to scub egg residue out of. I want my money back. This whole thing was a pain and waste of time.