The Castellari pruning saw features a very sturdy, yet light blade.
The hard chrome plating on the blade prevents rust and any other weather and environment effect.
Thus, the blade is also very easy to clean once you're done pruning.
The sharp, impulse hardened blade teeth ensure great durability and amazing pruning performances.
The two curved ends at the bottom and at the top of the blade ensure full control and reduced effort as the pruning saw won't release the branch. Thus you can run the pruning saw on the branch using its entire length for great cutting performances and the saw will stay on the branch you're pruning (it would be quite tricky repositioning the saw in the same spot with such a long pole). Simple pruning saws that don't feature these curves are hard to use and uncomfortable plus the saw can come out of its spot anytime.
Morever, the two curved ends have very sharp inner edges. When running the whole pruning saw blade on the branch, these sharp ends will cut into the bark on both sides. Thus, the result will be a clean cut. The branch will come off with no need to drag it and without ripping the bark and damaging the tree permanently.