Middle School: It's a Zoo in Here!

5pcs 0.8M 32P 3.175 5mm 11T 13T 15T 17T 18T 20T 24T 28T 30T 35T Hardened Steel Pinion Gear Motor Gear for 1/8 1/10 RC Model Car(26T 27T 28T 29T 30T)

Pinion Gear, Steel, 34T, MOD0.53 / 48P, Black

Bevel Gear Pinion Hardware Mechanical 1pcs 1M 28T-43T Cylindrical Flat Gear 1Mod Pinion Spur Gear 28 29 30 31 32 33 34 35 to 43Teeth Steel Mechanical Drive Gears(40 Teeth)

1 Mod 35T Steel Pinion Gear 1M35T Motor Spur Gear Bore 14mm Outer Diameter 37mm (Bore 14mm)

NHX RC MOD1 8mm Bore Hardened Steel 34T Pinion Gear Speed Run Drag Racing

Steel 48P 3.175mm Pinion Gear Sets 33T 34T 35T 36T 37T fit 3.175mm (1/8-Inch) Shaft & Steel 48P 3.175mm Pinion Gear Sets 13T 14T 15T 16T 17T fit 3.175mm (1/8-Inch) Shaft

UTEYEEW Spur Gear Pinion 1M 34T 34Teeth Mod 1 Bore 6mm 8mm 10mm 12mm Right Teeth Steel Major Gear CNC Gear Rack Transmission (Hole Diameter : 6mm, Number of Teeth : 34 Teeth)

GTHELE 4pcs 48P Pinion Gear 3.175mm Set Hardened 32T 33T 34T 35T 48DP Pitch Gears RC Upgrade Part with Screwdriver