A new generation of dumbbells, both internal and external, safe, beautiful, and practical. Product name: Wheel dumbbell Color: black and green Dumbbell material: PVC Handle material: rubber Weight: 10 kg, 15 kg, 20 kg Uses: exercise biceps abdominal muscles, etc. Applicable people: fitness Features: Freely increase or decrease weight; portable and easy to grasp; comfortable grip; stable without slipping; easy to maintain without rust; safe and silent. -note 1. We are measuring manually, there may be 1-3mm error. 2. Due to the problem of photo lighting, there may be some color differences, but please choose carefully within a reasonable range. 3. Delivery time is usually 15-25 days. If you have not received the product Please contact us within 30 days, we will try our best to solve it for you. 4. If you are not satisfied with the product, please contact us. If you are satisfied with our products, please remember to give us 5 stars.