(characteristics of articles) -handle: suitable for manual l-angle, more comfortable, strong, durable, more comfortable to use, anti-slip design.Enhanced version allows you to hold both ways and use more flexibly. -aviation aluminum alloy rod with the same strength but light weight, strong texture, durable -rubber grip, curved more scientific structure for palm, more comfortable -new shock absorbers designed to reduce the impact of wrists, arms and shoulders.Adjustable nylon wristbands can be relaxd or tightened and can be simply adjusted to the required level of strength. -durable manganese steel rod tip with rubber protective cover