Kabi Killer is Japan's leading mold removal spray designed specifically for bathroom use. This 2-pack set includes a 400g main spray bottle and a 400g refill. The product features powerful penetrating agents that effectively eliminate black mold, particularly from rubber seals and tile grout. It works within 5 minutes and provides 99.9% sterilization. Best suited for bathroom walls, tiles, joints, shower curtains, and rubber gaskets. The spray should be used with proper ventilation and protective gear due to its strong formula.