Amazon.com: KonHaovF 116PCS Gear and Axle Set for Technic Parts Compatible with with Major Brand Technic Parts, DIY Gears Assortment Pack(Gears Pins Axles Differential New) for Technic Building Blocks Set : Toys
Gear Bots 5006823 | Other | Buy online at the Official LEGO® Shop US
LEGO® Gears: from Samsonite to splat! | New Elementary: LEGO® parts, sets and techniques