This is an elastic adhesive for stone materials, often used in construction. It is used by mixing the main agent and hardener in a 1:1 ratio. It has excellent adhesion and durability, and is also suitable for exterior use. High-performance epoxy resin type. The outer box has some dirt and scratches, but it is an unopened, unused item. Please check the images for other details. Thank you. *We will not offer a discount, so please refrain from negotiating a price reduction. Expiration date: October 2026