● More Process Perfect The Frame Design After The Multi-Layer Process, Equipped With Anti-Collision Safety Materials, And The Impact Absorption Angle Structure Can Disperse Severe Impacts ● SuperMore Ergonomic The Handle Is More Comfortable To Grip, And The Non-Slip Grip Design Is Upgraded. The High-Quality Material Coating Makes It Gentle To Grip And Prevents Calluses, During Use, You Will Not Feel Uncomfortable Due To Sweating, So You Can Enjoy The Charm Of Sports ● More High-Quality Material Using Unique High-Quality High-Grade PVC Material, Smooth But Non-Slip To Grip; This Material Is Easier To Wipe And Clean. It Is Safer, Non-Toxic, Non-Harmless, And Has No Odor, the thick durable coating material provides a comfy grip on hands and doesn’t require gloves. The neoprene coating forms a protective barrier that prevents the dumbbells from chipping and protects the floor from damage ● Solid Cast Iron Made Of High-Quality Cast Iron Core To Enhance Durability, Toughness, And Stability. The Solid Structure Will Not Break Or Bend After Repeated Us ●Colorful Colors A variety of color choices, we could product them as your color number, color coded free weights neoprene dumbbell with printed weight number on the end caps for easy identification. Hexagonal head prevents rolling away from the storage place or during your exercise ● Great for total body workout This dumbbells are ideal to sculpt your arms, shoulders & back, build stamina & speed up metabolic rate. Perfect for overall health, balance, weight management, aerobics, cardio, yoga, and strength building ● Versatile & Multipurpose Easy to store and perfect for travel. Use for your indoor or outdoor workout regimes. Great for arm rows, squats, chest presses, bicep curls, walking, jogging, & yoga ● Packing Way Normal polybag, color card, color box ... we could provide OEM and ODM service.