STEELMAN JSP10118 Security Seal is an ideal way to keep yourself protected from both intentionally tampered fasteners or just ones that have worked themselves loose due to vibration and normal operation. When used to mark properly torqued fasteners by creating either a seal along the base or a line that runs across the fastener head and onto the surrounding surface, you can tell with a quick glance if that fastener has been loosened if that seal is broken. The bright blue color of the seal stands out in contrast to most metal and plastic automotive and small engine components, will not fade in the sun or wash off in rain, but is still easily removed in the event of tampering or for servicing. Adheres easily to most metal and plastic surfaces even when they aren't showroom clean. The quick drying formula is thick enough to stay where you put it and comes in a 1-ounce tube with easy application tip. Comes in a box of 10 tubes.