Green class eco black set is shipped with 1 piece of black pen, 1 piece of 100 ml black ink, 1 piece of spare pen tip. green class pen features green class liquid chalk pen1- it provides uninterrupted and easy writing with its specially designed flexible pen tip. durable tips used for a long time can be easily changed when needed. 2- it is filled 12 times with 100 ml of ink. 3- in addition to writing boards, it is also suitable for use on non-absorbent smooth surfaces such as glass, metal, wood, plastic, led signs, restaurant and cafe menu boards. 4- it turns writing in vivid colors into pleasure. 5- pens, which are filled and used repeatedly with special ink, are both economical and environmentally friendly in this respect. 6- with its ergonomic design, it provides comfortable grip and easy typing. 7-pen ink level can be monitored from the control window. 8- it is easily erased and does not leave any traces even after a long time from the surface it is used on. the blackboard is clean and ready to use every time. 9- while supporting the visual aspect of education with its vivid colors, it attracts the attention of the students and makes it easier to focus on the lesson. 10- pen and ink are produced in accordance with european standards. our ce certified products do not contain heavy metals and addictive substances. maximum 10 pieces of this product can be ordered. swordslife reserves the right to cancel orders over 10 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 examined. a product can be sold by more than one seller. the sellers of the products offered for sale by more than one seller are listed according to the price they set for the product, the seller points, the delivery status, the promotions on the products, whether the cargo is free or not and whether the products can be delivered with fast delivery, the stock and categories of the products. is highlighted. Create a party-ready atmosphere with this colorful LED lighting. Easy to install and perfect for events or home decoration.