414069 Brand：NO Quantity：1 Piece(s)/pack Color：Golden Material：Stainless steel Compatible Models：Shaft Coupling Joint for brushed motor and small type brushless motor Application：Shaft Coupling Joint Other Feature：Joint diameter: 9mm; Hole diameter: 4mm; Screw Thread: M3 Packing List：1 x Shaft Coupling Joint 1 x Wrench 2 x Screws Dimensions: 0.91 in x 0.35 in x 0.35 in (2.3 cm x 0.9 cm x 0.9 cm) Weight: 0.25 oz (7 g)