Lego® Technic 11955, 6036545 gear wheel 8 teeth, red
Amazon.com: Habow 116pcs Technic-Parts Gears-Axle-Pin-Connector Compatible with Lego-Technic, Wheels Link Chain Gear Rack Steering Wheel Technic Bush Hook Tow Ball String Reel Differential. MOC Building-Blocks. : Toys & Games