Practical Bottle Stopper with Integrated Bottle Opener. Made of Bamboo & Shiny Stainless Steel Metal. with Silicon Rings Around the Stopper for a Perfect Fit to the Neck of the Bottle. Materials Such as Bamboo Promote the Use of Natural Raw Materials, Thus Reducing Pollutant Emissions. It Comes From a Highly Resistant & Versatile Plant, with Rapid Growth & Regeneration, Making It an Excellent Alternative to the Use of Traditional Wood. Colours: Natural. Minimum Quantity: 50.