iO Stockholm Tar Compound is used for de-horning, shearing, pruning, opossum repellent, horses hooves. iO Pure Stockholm Tar is made from pure Swedish pine tar and can be used to rub on horses hooves as a natural barrier to dust and rain. Quick Facts & Benefits: Suitable for all horses and ponies in need of hoof health management. iO Stockholm Tar has natural antiseptic property and is non toxic. Directions for use: Apply to affected area with brush or cloth. Use in a well ventilated area and avoid contact with eyes or skin. Follow safety directions on packaging closely.