I ordered the Anbo Clasp-It mechanical grapple after reading about it on this forum. To install a 3rd function on my particular tractor would require removing the right rear tire and fender, maybe even the seat, to get to the hydraulic connections. I'm a one man operation so I decided against that option and unfortunately, I don't have much confidence in my local dealer. So, I decided to give this a try since I don't use a grapple but occasionally.
It arrived well packaged on a pallet and was easy to install. The specs for the grapple are on their website so you can find those there. It is very well made, solid, with good welds. The customer service folks were excellent. They kept me informed at every step. You have to send them specific measurements from your front end loader (sheet found on website) and they essentially custom build the grapple to your loader. The two linkage arms replace the function of the hydraulic "thumb", so you have to make adjustments to the opening width to your liking by adjusting the linkage arms. Essentially, you remove one linkage arm, adjust the attached linkage arm, then adjust and reattach the second linkage arm to match. Very simple.
The linkage arms attach to a rod that runs through the tube on your loader. You can remove it when not in use or you can leave it. It's not in the way, so I may leave it. However, that is how I anchored the tractor when trailering it . I ran a chain through the tube and anchored on each side.
I'm still playing around with it to get used to it and find out what adjustment works best. So far, I've been very pleased. My takeaway.....If you have an occasional need for a grapple, then this may work for you. If you routinely use a grapple, go for the 3rd function and fully hydraulic grapple.
I hope this was useful. Thank you.