It vacuum air pressure , quick to open and easy to operate. The most efficient and convenient way to open a wine bottle. No pulling, twisting, or broken cork pieces. Compatible with all types and sizes of wine bottles. There are no fumes, and no gas is needed to work correctly for the Air Pressure pump. Stainless Steel Pin - Safe and odorless, stable and durable.With high quality and long-lasting performance. Add your company name or logo for maximum visibility.