Spring Chest Developer Expander

Functions:ABS engineering plastic carbon spring steel wire tension is full and thick buckle.Specification:Material: ABS Engineering Plastic Carbon SpringColor: Black RedProduct Dimensions: (Triple-purpose tensioner) 680*340*30mm/26.8*13.4*1.2inNet weight: (Triple-purpose tensioner) 1100gGross weight: (Three-purpose tensioner) 1100gScope of application: FitnessUsage: Mainly train the muscles of the upper body and forechest.Main efficacy: Exercise arm strength/grip strength/waist strength.Notes:1. Please allow 1-3cm measuring deviation due to manual measurement.2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!