Features ADJUSTABLE STRENGTH The gear ratio is 3:1, with high accuracy it is recommended to use 385 for step E and adjust the strength of the finger screw to fit printing. DUAL DRIVE MODE: Two drive wheels grip the filament from both sides to ensure stable and reliable water intake. From common materials like PLA and ABS to flexible filaments like TPU or TPE, the dual drive gears ensure consistent filament flow in direct drive or Bolton configurations. APPLICABLE CONSUMER MATERIALS: This equipment is suitable for all 1.75mm consumables, even flexible consumables such as TPU. LIGHT AND FAST: The design of the dual drive extruder makes it suitable for direct drive configuration. Because helps to reduce the weight of the tool head. A lighter head means the printer can move faster without compromising accuracy or print quality caused by wobbling. Support function: the extruder can be equipped with a lower mounting slot for Bolton pipe slot installation. Specification: Item Type:Extruder Kit Material: aluminium alloy. Package list: 1 x extruder. 1 x spring. 1 x seal. 1 x elastic screw connection. 2 x M3 x 35 mm screws. 1 x M3 x 47 mm screw. 1 x 17 gear (diameter 9 x 13 mm). 1 x heating block silicone case. 1 x volcano heating block. 1 x copper tube. 1 x M6 x 21 mm brass nozzle. 2 x M3 x 6 mm screws. 1 x M3 x 10 mm screw. Note: Before ordering, compare the position and size of your printer extruder with the size of our extruder to confirm that it can be installed on the printer. Package List 1 x Extruder 1 x Spring 1 x Gasket 1 x Elastic Screw Fitting 2 x M3x35mm Screw 1 x M3x47mm Screw 1 x 17 Gear(dia9x13mm) 1 x Heating Block Silicone Sleeve 1 x Volcano Heating Block 1 x Copper Pipe 1 x M6x21mm Brass Nozzle 2 x M3x6mm Screw 1 x M3x10mm Screw