Outward/inward rotation allows for easier application and storage. Surrounds the electrical plug and protects against accidental reconnection. Rotating design allows for easier installation in confined space applications. Each size rotates into itself for compact storage in safety tool boxes. Complete with high-visibility permanent safety labels (English, French and Spanish). Labels can be written on to identify the responsible person then erased for the next job. Tough, lightweight, dielectric Zenex™ thermoplastic bodies withstand chemicals. Performs effectively in extreme conditions (-40å¡ F to 200å¡ F). Can accommodate max cord diameter of 3/4".