Check the listing for details. 100Pcs PVC Heat Shrink Wine Shrink Wrap Cap 32x50mm Black. Condition: New. Listed at 13.29 USD. Description:These heat shrink are made of PVC material, which is flexible and durable, and has good heat conductivity that conforms to the shape of the bottle neck to keep fresh.Provide a tight and secure seal to preserve the freshness and quality of wine, meanwhile preventing dust, and can also be used as a decoration for wine bottles, the classic design makes the bottle look more elegant and suitable for giving as a gift after brewing.Easy to use, the heat shrink are placed over the bottle neck and heated with a or steam to shrink and conform tightly to the shape of the bottle, creating a sealed finish, boiling hot water can also shrink well.The heat shrink caps are suitable for a variety of wine bottles: ice wine bottles, red wine bottles, beer bottles, and fruit wine bottles.