No.4, No.5 and No.6 are all medium-distance handles, and they exercise the same muscle parts, the difference is that No.4 can be gripped both outwardly and inwardly; No.5 is a vertical grip; and No.6 is an outward grip, but because of the design reason, No.6 is more comfortable to grip than No.4, and the difference between the three products mainly lies in the preference of different hands to grip the handles in different directions.
By vevor