This product is a dumbbell connecting rod, adoption of anti-wear and durable foam and steel material. It is perfect for dumbbell exercising use. And this connector rod is suitable for personal and professional use. The good choice for you. Features -Color:Multi -Material:Steel, Foam -Size:39.00X4.00X4.00cm/15.33X1.57X1.57in - Made of selected material for long time and durable use. This connecting rod is very easy to assemble, giving you much convenience. - The connecting rod prevents slipping when exercising and ensures your safety. - It has a simple design, but very practical in use, giving you a . - With the easy installment, more convenient to install and remove. Easy and convenient to use, let dumbbell change into barbell in a second. - Thoughtful your friends who like dumbbell weight training. The product is in a simple design, but very useful and practical. Package list: 1 x Connection Rod