#SN-800C #75 #Soft Pen #Grading #Marking This is a soft pen for marking and grading. It's excellent because it can use fountain pen ink cartridges (ink). The cost performance is outstanding when considering long-term use. Simple shipping, just put it in a water-resistant OPP bag. Included: 1 spare tip, 1 cartridge ink Refill: Spare tip ST-100N Improvements compared to the old version: Improved clip strength and durability. Adopted a cover structure to prevent ink leakage. Increased the volume of the main body to reduce fatigue in extensive grading writing. To keep the total cost down, we will send it by regular mail (outside) post. If you need tracking, anonymity, or compensation, we will create a product with separate options, so please consult us before purchasing.