I love the Rimmel Scandaleyes Kohl Brittania Pencil, I am Lucky enough to have 2 of these, the Black and the Brown, Both I love equally.
Rimmel has done a great job with these, they are the same size shape etc as any other eyeliner pencil but the formula they have hit the nail on the head basically. It is soft, dark, buildable and really long lasting. Alot of eyeliners you have to run back and forth over the waterline or lash line to get it dark enough but these it is clearly not the vase, there is no pushing hard on the area, there's no heating the product before use like some, it is just simple and easy to apply.
I wouldn't say its "smudge-proof" but it is long lasting and it doesn't make a horrible mess which is perfect, I think because of how soft the product is, you go through it quicker but at the great price of around $15 plus you find Rimmel on sale quite often, it is easily replaceable.
Overall great product and if you need a reliable pencil eyeliner I highly suggest to everyone to purchase. I will happily recommend and will personally buy it again.
These liners are soft and creamy, and go on more smoothly than hard pencils. They set quickly and then stay put all day. The point does wear down quickly so they do need to be resharpened often, but they are relatively inexpensive. I've tried out nearly all of the colours, the pigment in the silver pencil is amazing and it stays in place better than the more expensive liners.
Tips: Look for them in the pharmacy's if your oversea's they are around $4 in the states.