They can be used in animation, illustration, cartoons, industrial design, fashion design, architecture and graphics. they are professional pens with a unique fine point nib on one side and a wide chisel nib on the other. touch twin marker pens offer artists and designers more line thickness than ever before. .felt tip quality is very good, friction ratio is low, it does not damage the paper. maximum 5 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 5 units. more than 100 stocks are available to be sold at the campaign price. the seller determines the selling price of the product you have reviewed. a product can be sold by more than one seller. sellers of products offered for sale by more than one seller are listed according to the price they set for the product, seller ratings, delivery status, promotions on the products, whether the cargo is free or not, whether the products can be delivered with fast delivery, and the stock and categories of the products. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.