Had this pin bought for our son because he did something difficult with pen writing. The super practical in this pen is that it can be filled with normal ink cartridges. Unlike previous posts, we had what could only be operated with "expensive" special cartridges. Our son was also of handling very enthusiastic and his handwriting improved slightly with this pen - but our son has managed to break the tip when writing with this pen .... and after just about 2 months ... .. therefore a star deduction - because our son is an elementary school child - so had not yet soooo write a lot, and then already broken material ??? Too Bad !!!!
