· special middle leg connection stabilizer bar that prevents the blackboard from slipping and closing on slippery floors · special polyester surface with a thickness of 1.5 mm · full length telescopic legs with electrostatic paint · fasteners with a design that prevents the feet from being crushed and scratched · special design resistant to crushing and breaking in cargo flexible structure · unlike other whiteboards, it is not affected by water and chemicals. after intensive use, it reaches its first day's shine when it is wiped with a soft cloth with laundry water. · school blackboard white surface · easy to write and erase with a blackboard pen. · 100% domestic production. 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. 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.