Feature

●These black lined conical nuts have a 20/400 neck finish , making them ideal for bottles without nuts
●Insert the cone into the sealing area to form a tight seal to prevent liquid leakage, carbonation and gas leakage, thus providing you with a good seal and air tight seal
●Made of high quality Bakelite and polyethylene, it is strong and leak proof when placed on the bottle
●It can provide good torque retention, can be reused and durable, and the polyethylene cover will not rust over time
●The black sealing nut has convex ridge on the whole circumference, which makes it easier to hold and seal


Description

Specification:
Type: Boston Bottle Cap
Out diameter: 23mm
Inner diameter: 20mm
Height: 12mm
Material: Bakelite
Color: Black
Package includes: 24 x Black Boston Bottle Caps
With raised ridges all over the circumference, making the lid easier to grasp, this 23mm inside diameter poly nut provides a good seal on the container for your daily use.