This tea otter features a removable silicone shell that is meant to be loaded with your favorite loose-leaf tea.;Perch him on the edge of your mug while he steeps and take some time be at ease in your own shell.;Tea otter gets a slow and steady dip in his own personal hot tub and you get a perfect cup o' tea. It's win-win.;100% silicone.;Microwave and dishwasher safe.