Werner28-2 Replacement Rung Locks Kit - Fits: D1100-2 Series Ladders - Length 7-3/4"

They instructions where a bit weak, but this isn't rocket science. The plastic parts will likely wear out and break like those I'm replacing did in time. My ladder had mine riveted on, so replacing mine with these required that I get the rivets out. I used a hammer and chizzle to break the rivets out. I also didn't have a threader, but I found the bolts were able to self thread through the existing holes.So it didn't take much to thread the holes to accept the bolts mine came with.Once on they worked as well as those the ladder came with.NOTE: I did take the time to see what brand and model my ladder was to ensure the replacements I ordered would work. I would advise the same to all that need to replace their own.

Need to reverse the extension part of the old ladder. extension part of the ladder was on back of base ladder. Slid it off and slid it back on the front of the base ladder. Had to reposition the new rung locks just above the next rung up of where the old locks were. New ones don't go where the old rung locks were. new locks lock onto 2 rungs. Works great.

This is a great product. Well made and easy to install. I'm rating this 3 stars only because the box arrived and was open. Bolts and lock nuts were missing. I called the manufacturer and they wouldn't do anything to correct. I would have returned the item, but it was easier to go to ACE hardware and pick up the missing parts.

We replaced the rung locks and they now work perfectly. Nice and sturdy.

Well constructed, exact replacement part for my old ladder, easy to install, strong, very pleased.