OLYCRAFT 8pcs Square Carbon Fiber Tube Carbon Fiber Rod Hollow Square Tube 3mm 4mm 6mm 8mm Carbon Fiber Bar 420mm Length For DIY Sand Table Architectural RC Airplane Lights Rack Model

Package Include--You will get 5 different sizes of ABS plastic round hollow tubes, 6 pcs/size, 30 pcs in total. Premium Material--The round hollow tube is made of high quality ABS plastic, with good toughness and strength, lightweight and durable. It can be more convenient in model making. Wide Application--Perfect for structural and architectural model making or building, model railway, wargame layout and diorama creation and many other DIY modelling tasks.