Item Package Quantity:1 Product Description Stainless steel with hardened fulcrum spring and points for long life. Precision ground with threaded spool mechanism for infinite adjustment. Includes 8-Inch Outside Caliper 8-Inch Inside Caliper and 8-Inch Divider. From the Manufacturer Stainless steel with hardened fulcrum spring and points for long life. Precision ground with threaded spool mechanism for infinite adjustment. Includes 8-Inch Outside Caliper 8-Inch Inside Caliper and 8-Inch Divider