Professional Dozen - Retaining Ring PlierS Kit. Kit covers complete range of rings from approximately 1/4" to 3-1/2" of both Internal and External types - 12 convertible pliers tip diameters .038-.047-.070-.090 with straight-45 degree and 90 degree bend. (Takes the place of 24 individual models.) Comfortable vinyl grips - packed in shock resistant plastic case with storage space for spare rings complete with carrying handle. Weight - 5-1/2 pounds.