shrink caps for wine bottles are designed specifically for keeping your wine fresh. The black plastic cork top is easy to load into the wine bottle mouth and provides an airtight seal, extending and preserving the opened wine. Heat Shrink Wine Bottle Seals are a great way to seal your wine bottles for decoration. These heat shrink capsules are made of High-quality materials and you can shrink it with hot water. When heated it shrink and tighten around your wine bottle while it seal your bottle tightly. This wine bottle sealer heat shrink is easy to use. All you need to do is plug it into the bottle and shrink it with a hot air blower. This help keep your wine or distilled spirits fresh. Size: cork diameter 17 mm, height 25 mm, cap diameter 30 mm; black shrink capsule diameter 30 mm, height 60 mm, fits most standard wine bottles Widely use: wine bottle shrink capsule is suitable for most different bottles, nice for using, wine cellar, party favors, or as a practical small gift for the wine collection lovers, it provide a to the bottle of wine; Material: plastic colour: Black Package Contents: 50 x corks 50 x wine bottle seals Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.