Find many great new & used options and get the best deals for USED Staedtler Marsmatic / Mars Technical Pen Points / Nibs 750 / 757 / 759 at the best online prices at ! Free shipping for many products!. Condition: Used : An item that has been used previously. See the seller’s listing for full details and description of any imperfections. See all condition definitions , Seller Notes: “PLEASE READ DESCRIPTION BEFORE BUYING!” , 。