1805g / 63.7ozSize:Linear Guide Rail: Approx. 30x1.5x1.5cm / 11.8x0.6x0.6in Slide Block: Approx. 6x3.5x2.5cm / 2.4x1.4x1.0in. 2 Linear Guide Rail with 4 Slide Block. It is made of high hardness cast iron, which is wear-resistant and has good durability and stability.
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