2mm to 2mm Coupling Hub Please allow 4-6 days processing before ship out. For gearmotors or similar motors, we don’t ship using epacket and will use regular shipping if needed. Please note that regular shipping like singapore post might take 45-60 days to deliver, epacket 20 -35 days to deliver Thank you for understanding. » All Products » 2mm to 2mm Coupling Hub START SLIDESHOWSTOP SLIDESHOW This copper coupler can be used for connection of 2mm to 2mm shafts of RC toys, boats and helicopters. SKU: OTH27407972788 Price: 0.99 $ Product in stock SSL Certificate Quantity Updating cart... This copper coupler can be used for connection of 2mm to 2mm shafts of RC toys, boats and helicopters. Specifications Length: 20 mm Inner Diameter: 2 mm Material: Brass Related Products 2pcs 1 V 100 mA Solar Panel High Power PWM Switch Module (5 – 36 V, 15 A) 2pcs Mounting Hub for 4 mm Shafts MK8 Aluminium Block without Tip for the 3D Printer Head JGA25-310 DC Gearmotor (484 RPM at 6 V)