DC brushed motor, with precision spur gear gearbox, 6V-12V operating voltage, 6mm D shaft, part 638222 on Servo City Actobotics brand 0.770″ set screw hub for 6mm shafts, part 545576 on Servo City very flexible very soft tubing, 5mm OD, 3mm ID, FDA approved barbed couplings for the tubing mentioned above, these hold the tube in place, FDA approved, 1/8 inch diameter is acceptable as well 6x steel ball bearing, double shielded, 1/4 inch ID, 1/2 inch OD, used as the rollers binding post, 1/4″ barrel diameter, #10 screw, 5/8 to 3/4 inch length, used as axles for the bearings 4x #6-32 machine screw 1 inch long, holds the rotor to the hub 6x M3 machine screw 0.5mm pitch 12mm long, holds the motor to the pump housing 4x M4 nylon locking nut, to hold the pump housing together 4x M4 machine screw 50mm long, to hold the pump housing together 1x M4 screw with hex head cap 20mm long fully threaded, optional, used as an axle on the rotor, if you wanted to add a dust shield with another bearing 1x M4 nylon locking nut, optional, to hold hex head cap screw mentioned above 1x steel ball bearing, double shielded, flanged, with extended inner ring, 5/32 inch ID, 5/16 inch OD, optional, if you wanted to add a dust shield with another bearing 1/8 inch thick clear polycarbonate sheet, optional, cut and drill into a dust shield optionally use Loctite on the screws without nylon locking nuts