This stainless steel wine Tumblers are made of high quality food safe stainless steel. Stainless steel stemless wine tumbler are insulated, durable, lightweight, lead-free, and non-breakable. In daily life, we can pick up the stemless wine tumbler, and the wine cups can hold our favorite drinks. It is very portable whether at home or outdoors, bringing more beauty to life. We offer customize your own design logo, image or message on the surface.