Provides a tight air seal to sealant from drying or hardening inside the tube Crafted from flexible that retains its shape after reuse Designed to resist cracking or breaking even after multiple uses, ensuring long-term reliability ensuring that the glass adhesive is tightly sealed, effectively the entry of air,, and, and maintaining the freshness and of the glass adhesive The sealing cover is and remove, and users do not need additional tools to easily complete the sealing work Ideal for sealant storage, adhesive maintenance, and 3D printing, Manufacturer: Fluxioxtna