I bought this for my husband to use in his wood working. The bonus was that it comes in a 2 pack so I gave him one and kept one for my daughter to use during homeschooling, art projects and for crafting. The best part is that the marking pencil is built in so I don't have to make sure that I have a pencil handy or find myself not having a sharpened one at the ready. It is very easy to change out the pencil tips when needed and it comes with a refill tube. I love that it has the case so everything is protected and it can be stored in a bag or toolbox until it is needed. It is made of stainless steel so it is strong and durable. It is built to last. Great quality compass set for a budget price.