2pcs Bevel Gear 2M 20 Teeth 10mm Shaft Hole Tapered Pinion Gear with 4mm Keyway 11.8x9.8x3.9 Inch it is strong and durable

it is strong and durable

The low back design fits most seats with built-in or detachable headrests

Extension fitting is mainly used to extend pipes and water pipes

Female Thread: M18x1

14 Inch(L*W*H)

2pcs Bevel Gear 2M 20 Teeth 10mm Shaft Hole Tapered Pinion Gear with 4mm Keyway 11.8x9.8x3.9 Inch it is strong and durable1. Ratio: 1: 1, Module: 2M (2 Module), Steering Angle: 90 Degrees, Tooth: 20 Teeth, Shaft Hole: 10mm, Fixed Method: M5 Screw Side Fixed, Overall Size: 42 x 27mm 1. 65 x 1. 06inch 2. The bevel gears are made of 45# steel and feature high wear resistance, strong and durable, which takes the quenching and blackening process for a long life time. 3. The bevel gear set comes with 2 x Bevel Gears, 2 x M5 Screws, 1 x Hex Spanner for simplicity and convenient