uxcell Pinion Gear Set, 45# Carbon Steel Motor Rack Spur Gear with Step Black, 0.5 Mod 38T 10mm Bore 20mm Outer Dia, M4 Set Screws Included auspowers_batchsix 59inchWheel Material: Soft rubber &

59inchWheel Material: Soft rubber & TPE

For kids 3+

Each values is sorted into 15-grids box

Crystal clear sound with the latest Bluetooth 5

ground fault and short-circuit protection

uxcell Pinion Gear Set, 45# Carbon Steel Motor Rack Spur Gear with Step Black, 0.5 Mod 38T 10mm Bore 20mm Outer Dia, M4 Set Screws Included auspowers_batchsix 59inchWheel Material: Soft rubber &uxcell Pinion Gear Set, 45# Carbon Steel Motor Rack Spur Gear with Step Black, 0. 5 Mod 38T 10mm Bore 20mm Outer Dia, M4 Set Screws Included Product Features Pinion Gear: Model: 0. 5 Mod; Teeth: 38T; Bore Size (Shaft Dia.): 10mm 0. 39"; Outer Dia. (Teeth Part): 20mm 0. 79"; Effective Teeth Length: 5mm 0. 2"; Step Size: 16mm x 7mm 0. 63" x 0. 28" (D*H) 45# Carbon Steel: Made of 45# carbon steel, the pinion gear has better hardness, higher strength and