Features Made of high quality aluminum materials, which makes it more durable and you can use it for a long time. Can play a good solid role, makes parts not easy to release, more convenient operation. A direct replacement for the old and defective one that is very practical, no complicated steps. With easy installation, and there is no need to waste your time, very practical. Suitable for stepper motors from the Nema 17 42 series approx. 42 x 42 mm / 1.7 x 1.7 inches. Specification: Item Type:Engine Mount Plate Material: aluminium. Size: approx. 42 x 60 mm / 1.7 x 2.4 inches. Thickness: approx. 2.5 mm. Suitable for stepper motors from the NEMA 17 42 series approx. 42 x 42 mm / 1.7 x 1.7 inches. Size: approx. 31 mm / 1.2 inches. 21 mm. 60 mm / 2.4 inches. 12.25 mm / 0.5 inches. 25 mm 42 mm 8mm 1.8 mm. 4 mm / 0.2 inches. Package list: 5 x motor mount plate Package List 5 x Motor Mount Plate