I bought this as part of a recent order and figured I'd describe it for anyone who couldn't find much detail on the web.
Shown below are the parts that come in the kit (x4). Cat's paw NOT included.
The strap has an over-center buckle and extends to a maximum (hook to eye) of exactly six feet when the handle is flipped to tighten the strap. The handle tightens the strap by about an inch after the length has been adjusted. The fixed end of the strap is sewn around an eye which has about a 30º bend in it (difficult to see in the picture). The bolt, washer and small nut are for fastening the fixed end to the trailer.
The separate metal bracket gets fastened to the pylon bolt using the larger nut, which is thin so that it can replace the existing one whilst using the existing bolt.
1) The provided hardware for mounting the fixed end is not long enough to go through a 2" box section; it is for a single thickness of metal only. Not a big deal, but 2" box section is pretty common for the area this is intended to be fastened to. The catalog photo shows it bolted to the roller assembly, but the instructions indicate that it should go farther inboard than that.
2) the special narrow pylon nut does not fit my boat. My old '78 might have 1/2" thread nylon nuts on the pylons, but my '00 has 3/8" SS Nylocs.
3) The bracket for mounting to the pylon is simply butt-ugly with sharp edges.
So, if I can't use any of the hardware, it comes down to paying $21 for each of those nice straps. Then I have to buy $22 worth of climbing wall anchors for the pylons, longer bolts to mount the fixed ends, and either buy longer pylon bolts or grind the existing nuts thinner. This is not what I had in mind when I bought a kit, so as much as I like the concept it just might just have to go back.
EDIT: corrected name of buckle type; it's an over-center buckle.
'00 H16 #104691 - '78 H16 #32692 ex-rental - Old Holsclaw trailerMy Hobie 16 pages