Eraser design is excellent.

Great design, sturdy body, comfortable grip, nice erasers

Pencil itself works well, but the design of the eraser is a pain to deal with

Perfect grip, perfect design.

Weighted correctly--good ergonomic design

They're a classy design, are well constructed and work smoothly

The long eraser and the design such that the lead doesn’t always break makes this one of the best mechanical pencils.

I have ahd many of these and I love the design

Bad design decision.

Their modular design is extremely useful and means you won't have to constantly replace them

The design of Twist Erase III is phenomenal

Excellent design - made to actually write AND erase.

Still the best design, just shore up the inner tube!

Distinctive design--it's not that I have to have a unique writing implement

Nice design with plenty of eraser.

Very nice design, eraser functions well and lasts for a respectable amount of time

The design is very simple yet solid

Well designed

I like the design, so smart!

Love this design!

The cheap plastic design works no better than a pencil that costs half as much and even with the .9mm

so well designed that I can find no flaws in it, but these pencils fit that description.

The cheap plastic design works no better than a pencil that costs half as much and even with the .9mm

These Pentels are solidly built with an excellent grip and erasers designed for serious work.

Beautiful design and works flawlessly.

Highest quality pens and well designed!

Great design, good performer.

Comfortable to write with and just very well designed.

I wanted to upgrade to a better mechanical pencil, so I decided to buy a 2 pack of 0.7mm and a single 0.9mm Pentel Twist-Erase III Automatic Pencil(s)