1. UNIVERSAL 1/4' FIXING SCREW: The camera slider features a universal 1/4' mounting screw compatible with most DSLR camera brands, ensuring versatility and ease of use. This allows photographers to seamlessly integrate it into their existing setups without needing additional adapters or accessories. 2. ALLOY CONSTRUCTION: Crafted from alloy, the 2way macro focusing rail slider boasts a robust structure designed for durability. Its construction provides photographers with the confidence that their equipment can endure the demands of regular use in various shooting environments. 3. SMOOTH RACK AND PINION MOVEMENT: Experience precise and swift adjustments with the smooth rack and pinion movement of this slider. Whether focusing on intricate details during closeups or capturing dynamic scenes, the track slider delivers reliable performance, ensuring every shot is framed. 4. DUALDIRECTION MOVEMENT WITH SCALING: The rail slider enables movement in two directions—forward and backward. Paired with the scale, photographers can achieve quick and accurate focusing even in challenging shooting conditions. This feature is especially valuable for closeup shots where precision is critical.