Guide Rail, Overall Length 460 mm, Overall Width 25 mm, Overall Height 21.8 mm, Rail Material Aluminum, For Use With Alulin Carriages, Maximum Operating Temperature 60 Degrees C, Minimum Operating Temperature 0 Degrees C, Mounting Hole Center to Center 60 mm, Mounting Hole from Shaft End 28 mm, Mounting Hole Size 11 mm, Raceway Material Stainless Steel, Series Alulin, Size 25, System of Measurement Metric