Ender 3 Pro printer, very clean and fully upgraded for 250 SAR. The upgrades are as follows: 1. Installed a side fan to increase cooling speed. 2. Installed stronger springs for better leveling. 3. Installed a motherboard that increases speed and fan cooling. 4. Installed leveling and speed rods. You must install them with the new motherboard to maintain accuracy and speed. For sale to the highest bidder, please do not undervalue the item.