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