Pexflow PXKT-CL1234 Pex Half-Clamp - 1/2 Inch Half Talon Clamp with Nail (100 Pieces) + 3/4 Inch Half Talon Clamp with Nail (100 Pieces) for Radiant Heating, Water Supply & Other Plumbing Applications Perfect kit for the DIY home-owner or the professional looking to get started with PEX plumbing bundle. Provides an Easy and Efficient Way to Secure Pipes 1/2 Inch Half Talon Clamp with Nail (100 Pieces- 2 set of 50 Pieces each) + 3/4 Inch Half Talon Clamp with Nail (100 Pieces - 2 set of 50 Pieces each) Comes equipped with a pre-loaded nail and can be used with most types of piping Designed Specifically for use with PEX Tubing; Eliminates contact between the pipe and the framing surface to help prevent sound vibrations