Does anyone know what the ladder in the (hopefully!) attached photos is for? It has four steps and is just over 5 foot tall when collapsed and appears to be designed to attach to a point approximately 46" above the ground. As you can see in the photos it's too tall for my M37 and has the wrong kind of hooks. The legs telescope out the bottom and it appears that they can be extended up to ~29 inches but there's no step on the bottom extension so the first step might be a doozy! It has spring loaded clips to hold the extension in but I don't see any way to lock them in the extended position. The bottoms on the ladder are round. The legs of the ladder are ~ 1 1/4" w x 5" tall and the overall width is 14 3/4". It has flat j shaped hooks so it looks like it's designed to hook into holes or slots. There are also two spring loaded pull pins on the back of the legs near the bottom. I expect that they're used to lock it into a storage rack. Most of the ladder is made on aluminium but the extensions are made of steel. The steps are made out of stamped aluminium and have expanded metal welded to the top on them.