Establish and maintain tight control over emergency scene perimeters quickly and efficiently with the Sirchie BT300 Barrier brilliant yellow warning tape. Simply tie one end of the tape around a fixed item, walk around the scene's perimeter and tie it off where desired. The tape is available in six formats to accommodate virtually any situation. The eye-catching black lettering is printed on brilliant yellow polyethylene. This tape is 3" (7.50 cm) wide x 1000 ft (304.8 m) long. The warning "SHERIFF LINE DO NOT CROSS" repeats every 31". A dispenser box is furnished with each roll.