This is the Dritz Heavy Duty Plier Kit (24P).
This kit includes the heavy duty pliers and also includes 4 Heavy Duty 5/8" (16mm) snaps.
Use these pliers to set heavy duty snaps on 2 layers of medium to heavy weight fabric that have been reinforced with interfacing.
NOT FOR USE ON LIGHT WEIGHT FABRICS OR SINGLE LAYERS OF UNREINFORCED FABRIC.
These pliers apply Dritz Heavy Duty Snaps #5 and #105.