Note: Because the post office don't allow us send the item over 90cm, so we only can send them by 0.5Meter/pcs, hope you can understand.Superior quality and extremely smooth finish. These carbon Tube are ideal for R/C modeling including Micro helicopters, spars, Kites, Foamy and Depron type models etc.Specifications:Product name:full carbon fiber square tubeMaterial: Carbon fiberPlace of production: Chinasize: OD x ID2x2x1mm, 2.5x2.5x1.5mm, 3x3x2mm, 4x4x3mm, 5x5x3mm, 5x5x3.5mm, 5x5x4mm, 6x6x3mm, 6x6x3.5mm, 6x6x4mm, 6x6x4.5mm, 6x6x5mm, 8x8x4mm, 8x8x4.5mm, 8x8x5mm, 8x8x6mm, 8x8x6.5mm, 10x10x4.5mm, 10x10x5mm, 10x10x6mm, 10x10x6.5mm, 10x10x7mm, 10x10x8mm, 10x10x8.5mmLength:500mm(Positive and negative tolerance 12mm)Description:carbon fiber tube, is used of high-tech carbon fiber composite material made of prepregCarbon fiber tube with high strength, stiffness, load bearing performanceAnd a light weight (material density 1.9)Good corrosion resistance, good material stabilityIt can be used instead of metal, plastic and other material membersPackage include: 4pcs×full carbon fiber square tube