The lead does not break easily.

The only down fall is the erasers do not seem to last as long as the lead does

Second, the lead does not break due to a shock effect at the tip

A single pencil lasts a long time, the lead doesn't pop back in to the pencil frequently like it does with mechanical pencils you have to load, and it has an eraser which can be pulled out a bit to last the life of the pencil if you erase a lot.

The lead does not come out of the pencil and all the pencils came with ONE piece of lead as well.

How many twists does it take, 50?????

: -)They are durable ... the pencil lead does not snap like others with pressure

The lead does not easily smear and the erasures do not dry out.

I guess I prefer a length or use a pressure that does not work well with those.

The lead does not last and breaks very easily.

I like it buuuuuuut there is one pencil that does not hold the lead correctly and it just slips out

Best pencil to do a lot of writing with and the lead does not break.

The lead does not back up

The lead doesn't break easily like it does in some mechanical pencils.

The lead does not last and breaks very easily.

The eraser on these pencils work great and don't leave a smudge but does the job easily

I like that lead does not automatically dispense when the eraser is used

The lead does not break off as much as it does in some other mechanical pencils

This pencil works AMAZING!!!The led does not break easily so it stays for a while also it doesn't wriggle when u

The lead does not break and easy to use- great eraser!

The lead does not break easily and it has a nice grip

The lead does not break like in normal mechanical pencils and the erasers are awesome.

I press very hard when writing, and the lead never breaks, as it does with other similar products.

The led does not break!

This led pencil does not have a push to advance lead and the lead

The eraser does not smudge or tear the paper

These are 'one time use' only so it does feel a bit wasteful but they last a really long time

I find that these erasers last about as long as the lead does then when it runs out you just throw the whole thing away

It also has one of the best erasers I've ever used on a pencil, but it tends to run out before the lead does

The lead doesn't break off like it does with a lot of mechanical pencils.

Oh, and eraser does not harden with age.

The eraser does not leave smudges on the paper.

It's a very soft, easy flow when writing and the lead does not easily break off, despite dropping of the pencil.