1.High-Strength Materials for Safe Weight-Bearing
Made with cast iron cores wrapped in rubber/PU, or pure steel with chrome plating. Rubber models are anti-slip and wear-resistant, with ≤40dB noise when dropped, protecting floors. Steel models have ≥0.05mm chrome layers, passing 48-hour salt spray tests for rust resistance. Single dumbbell weight ranges from 2.5kg to 30kg, suitable for various training intensities.

2.Adjustable Design for Flexible Weight Changes
Adjustable models feature quick-locking mechanisms (rotary/snap-on), allowing weight changes within 3 seconds. Dumbbell plate combinations offer 5kg-50kg adjustable weights (2.5kg increments). Ergonomic anti-slip handle grips (30mm-35mm diameter) fit palm curves, preventing slippage or wrist fatigue during workouts.
3.Multi-Functional for Full-Body Muscle Training
Suitable for chest presses, shoulder presses, bicep curls, leg squats, and other multi-part exercises. Fixed-weight models are ideal for beginners’ basic training; adjustable models fit advanced progressive muscle-building plans. Some sets include a connecting bar to convert into a barbell, expanding training variety.
4.Space-Saving Design for Easy Storage
Fixed models are compact, with ≤15cm diameter (for 10kg), stackable for storage. Adjustable models come with a dedicated rack (≥100kg load capacity) to save space and prevent tipping. Rubber models have anti-slip pads at the bottom, increasing stability by 60% to avoid sliding during training.
5.Professional Certification for Durability
Certified by EN 957 fitness equipment safety standards, with handle and weight connection strength ≥500N (no deformation in pull tests). Rubber models withstand -30℃ to 60℃, suitable for various environments; steel models pass 1000 drop tests (1m height) without cracks, with a service life of over 5 years.