Iverntech MGN12 300mm Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine Style:Black 3 inch Package Type: DIP(Dual

3 inch Package Type: DIP(Dual In-line Package)Polarity: Anode (Longer Part) | Cathode (Shorter Part) Package Content: 10pcs x Photodiodes

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Iverntech MGN12 300mm Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine Style:Black 3 inch Package Type: DIP(DualIverntech MGN12 300mm Linear Rail Guide with MGN12H Stainless Steel Black Carriage Block for Ender 3, Corexy, Tronxy, Delta Kossel 3D Printers Upgrades and CNC Machine Packing list: 1 x 300mm MGN12 Rail Guide + 1 x MGN12H Carriage Product Features Surface technology: Oxidation prevention by electroplating (chromium plating) Rail Guide Material: bearing steel. Rail Length: 300mm (11. 81") Block: MGN12H ball bearing carriage. Block material: Stainless