Clear, non-staining formula contains natural ingredients. Non-flammable and contains no petroleum distillates. Can be applied on all wood surfaces, indoors and out. Dries quickly and is not affected by moisture once it dries. Can be applied in wet weather. An economical, effective way to put a halt to chewing that doesn't affect the environment or the horse's health. 32 oz with trigger sprayer or gallon bucket for paint-on applications.