
Adjustable Rizhao Factory Home Gym Equipment Rubber Hex Dumbbell. Durable Cast Iron Core: Solid cast iron inner core ensures sufficient weight, smaller volume, and high durability. Protective Rubber Coating: High-quality environmental protection rubber shell prevents floor damage and ensures safety. Anti-Rust Knurled Grip: Electroplated knurled grip with diamond texture offers large friction and rust resistance. Wide Weight Range: Available from 5 to 140lbs in 5lb increments or 2.5 to 50kgs in 2.5kg increments. Custom Logo Available: Custom logo printing is supported for personalized branding needs. Versatile Application: Suitable for both commercial gyms and home gym environments. Multiple Certifications: Product certified with RoHS, ISO, and CE standards for quality assurance. Professional OEM/ODM: Strong OEM and ODM capabilities with professional design and R&D teams.