Features 1、The kit contains 5 replaceable aluminum tubes, which are commonly used parts in the robotics field. 2、The inner diameter is 10mm and the outer diameter is 12mm, which can be used to add structural support to the chassis. 3、Can be used as a shaft in a rotating assembly, or as a sleeve with an outer diameter of 10mm. 4、The aluminum tube with circular hollow structure design is easy to install and disassemble, and it has strong practicability. 5、Made of aluminum, light and convenient, easy to install and replace, not easy to corrode after long time use. Specification Item Type: Aluminum Tube Model: 6100-1012-0200 Material: Aluminum Outer Diameter: Approx. 12mm / 0.5in Inner Diameter: Approx. 10mm / 0.4in Length: Approx. 200mm / 7.9in Application: In the field of robotics, it can be used to add structural support to the chassis Package List 5 x Aluminum Tube