Effective Cleaning: The 1 gallon (128 fl oz) refill bottle of cleaner contains surfactants that effectively remove stubborn stains and dirt from the whiteboard. The cleaner's mild formula helps extend the life of the whiteboard Non-Toxic & Safe: The dry erase board cleaner is AP-certified non-toxic and complies with ASTM D4263. It has also passed REACH compliance testing, ensuring safety for both human health and the environment Large Capacity: 1 gallon drum cleaner with large capacity, for refilling with other detergents, as refill bottle for LOUKIN 500ml, 250ml detergents Collapsible Funnel: The detergent bottle is connected to a collapsible silicone funnel which is foldable and expandable. Odourless material, odours are not transferred to the liquids, the rope connection is easy to dismantle, easy to clean and store Versatile Use: The dry erase board cleaner is ideal for classrooms, offices and homes. It can be used to clean a variety of whiteboards loukin Non-Toxic Whiteboard Cleaner, 1 Gallon (128oz) Dry-Erase Board Cleaner Ready-To-Use Refill, Connected Collapsible Silicone Funnel for Canned Liquid, Removes Whiteboard Stains