UST-1005

Comparable to the PFH, the Feedwheel tensioner has a feedwheel that holds onto the strap with high force, allowing the user to pull out an unlimited amount of slack out of the strap. These are best suited to be used on small or irregular objects.
 
If this is not the right tool for you, an alternative, more affordable tool called the UST1820 is availabe, or you can use the UST1000 which is a lighter, more lighy duty tool for 3/8" - 3/4" straps.