1.HSR15-1500 mm Linear Guide Rail: This linear guide rail set includes one piece of 1500 mm/59"" long HSR15 rail shafts and 4 bearing blocks with smooth sliding. 2.High-Quality Steel Material: Linear bearings are made of quality bearing steel. Beautiful and anti-rust surface treatment ensures durability, high hardness, and stiffness—smooth running, low noise, and non-pollution. 3.Premier Linear Guiding System: Linear guides and rails provide a smooth and precise guiding surface on which the rolling element of a linear bearing rides. It helps to build an economical linear guiding system and is designed to achieve high precision linear motion, low friction coefficient. 4.Easy to Install: Steel support rail with pre-drilled holes for easy mounting. Stainless steel Linear optical axis guide bearings linear movement. Easy to install, no need for maintenance. 5.Wide Application: The linear guide rail is widely used in CNC Router\CNC Grinding machine, the industrial machinery printing, paper-processing, automatic machine, X-Y table, factory automation equipment, etc. 6.This product has two different colors, so you will receive colorful or all-black types randomly. They have the same quality, and please rest assured to use them. ******************************************************************************************************* *Specifications Type: Linear Actuator Model: HGH 15CA Guide Length: 59 in /1500 mm Packing Size: 60 x 5 x 3 in / 152 x 12 x 7 cm Gross Weight: 141 lbs / 6 kg ******************************************************************************************************* *Pakcage Content 1 x Rail 4 x Blocks