This E Sun E Spool reusable spool is a must-have for 3D printer enthusiasts. This spool is designed to hold your filament securely, avoiding any tangling or knotting. The spool is made of hard plastic, making it durable and long-lasting. It has a blue color and dimensions of 8" in height and length. The filament diameter and compatible model are unknown, but it should work with most 3D printers. The spool is manufactured in China and is a great addition to your 3D printing supplies.