I picked this up as a spare infuser for my Satin Tea Mug, and it fits exactly as expected. The stainless steel feels sturdy, rinses clean easily, and doesn't hold onto flavors from one tea to the next. Just note it's only the infuser, so don't expect the mug or lid in the picture. If you already own the mug and want a backup for work or travel, this is a simple, practical replacement part.