Refill brush top or sprayer bottes to instantly dissolves seagull & pelican bird droppings both wet and dry on and off the boat. Cleans with ease all types of bird and fish and dock stains and messes. Use on: wood, ropes, glass, synthetics, metal, plastic, fiberglass, walls, carpet, awnings, boat fabrics, flags, sails and covers, composites, vinyl, canvas, upholstery and all types of decking. Non-Toxic & Bio-Degradable. Long lasting plastic flow control brush helps to remove stains, droppings and messes without your fingers touching the problem. This product works at removing the worst boat messes. This is not a pet bird cage cleaner. Use Poop-Off Bird Poop Remover for in home use. • Removes droppings from all types of avian diets including Seed fruit nuts meat vegetables nectar bugs grains formulated diet and greens • Removes even the toughest stains from clothing upholstery and carpets • Safe to use everywhere on the boat Inside and out