I ordered the item showing in the photo below consisting of a cap, a spring, and a diaphragm. They sent me only the diaphragm. When I complained they said tough luck -- the photos isn't accurate. They would not send me the cap and spring as shown.
Warning -- very disappointing product. I ordered a three pack of toner cartridges for my Brother laser printer. After a few hundred pages the printing is terrible -- faint and very uneven. Useless. I strongly urge you to avoid this company.