Lockout Tags 'Do Not Open' - Hazard Lockout Tags are easy to see and read.Lockout Tags 'Do Not Open' features include: Lockout tags warn of Hazard in and around Machinery, Equipment, Valves, etc. Made of rigid 15 mil Vinyl with 7/16" Brass grommet Easy to write on with permanent marker Moisture and mildew resistant for outdoor use Each durable long lasting hazard lockout tag is 5-3/4" x 3" Order Qty of 1 = 1 Bag of 5 Tags Below is more info on our Lockout Tags 'Do Not Open'