Been using variations of these for many years to record field data in the mountains of Montana. They are spendy, but more reliable and durable than any other pencil I've used.Pros: excellent large diameter quality eraser that has extended use (over 1" in length stored in the body that extends with a twist), 0.7mm lead that does not easily break, but is fine enough for readable detailed notes/diagrams, relatively high volume lead compartment (at least 3 spare 0.7mm leads in shaft), and it has an all metal guide tip that retracts so you don't get poked/write on your clothes/break your lead/pencil when not in use. This pencil has an overall sturdy design that fits the hand and looks pretty nifty for a pencil.Cons: spendy and the pencil is so nice that folks might try to walk off with them:)Pencils are nice but are not the ones that are in the picture. My son has a pencil he loved but needed a new one. We compared the picture with his pencil he has now to make sure it was the same. In the picture they were identical but when we received them, they are different. You can’t just buy one pencil, you have to buy a box of 12 which gets pricey.This is the SkillCraft pencil that the US Military uses (or did a few years ago when I was still in). It's close to bulletproof and will last for years. Super easy to refill, just pull apart and load extra leads in the tube. In 30+ years of using these I've only used up an eraser once.Nothing fancy here folks, just a perfectly designed and durable writing stick.Es el lápiz que no tiene comparación, el mejor de lo mejor, fui bendecido en volverlo a tener. LonamoGood but light weight, unlike the original Logo pencilsLove these pencils! Everything else seems primitive.I like these pencilsI love these pencil's. the .7mm lead is strong enough to even mark wood for a precise cut line. They work great for drafting and drawing or just plain printing or writing out a note.