A flip of the tab and the pliers change between internal and external applications •Automatic ratchet lock feature keeps rings open or closed for easy installation and removal •Comfort grip made of low-temp, high-impact material providing extra durability •Includes 6 pairs of alloy steel, color-coded, interchangeable tips and hex key all stored in a handy pouch •Internal: 1-13/16" thru 4"/External: 1-1/2" thru 4" Made in the USA