Specifications:

Four-inch brushless (bare metal)

Six-inch brushless (bare metal)

Four-inch brushless (1 electricity, 1 charge, 5 cartons)

Four-inch brushless (2 Electricity, 1 charge, 5 carton)

Six-inch brushless (1 electricity, 1 charge, 5 carton)

Six-inch brushless (2 Electricity, 1 charge, 5 carton)

Four-inch chain + guide plate