●Use for T-REX 250.
●Shaft x 1 (Φ2xΦ2.6x18.6mm)●Metal pulley cover x 2 (Φ1.7xΦ6x2.25mm)●Metal drive pulley (16T) x 1 (Φ1.7xΦ4.74x2.4mm)●Bearing MR52ZZ x 2 (Φ2xΦ5x2.5mm)●Screw x 1 (M1.2x3mm)