<p><b>【Product List】</b></p><p><b>15kg dumbbells:</b> <i>the total weight is about 15kg, including 2 dumbbells and a sponge barbell</i></p><p><b>20kg dumbbells: </b><i>The total weight is about 20kg, including 2 dumbbells and a sponge barbell</i></p><p><b>30kg dumbbells: </b><i>The total weight is about 30kg, including 2 dumbbells and a sponge barbell</i></p><p><b>40kg dumbbells:</b> <i>The total weight is about 40kg, including 2 dumbbells and a sponge barbell</i></p><p><b>【Dumbbell handle length】</b></p><p><b>15kg and 20kg dumbbells: </b><i>17.3 inches</i></p><p><b>30kg and 40kg dumbbells:</b><i> 21.3 inches</i></p><p><b>【Barbell length】</b></p><p><b>15kg/20kg/30kg/40kg dumbbell: </b><i>15.7 inches</i></p><p><b>【note】</b></p><p><i>1. If you have any questions about the product, please contact us through Amazon. We will provide you with answering services within 24 hours.</i></p><p><i>2. For orders delivered by Amazon, you can directly use Amazon for return and exchange services.</i></p><p><i>3. For orders delivered by the seller, you need to get in touch with the seller before returning the items. Due to the special product and non-quality problems, the return of the product requires the customer to bear the return shipping fee.</i></p><p><i>4. Before purchasing the product, if you have any questions about the product, please contact the seller directly through Amazon for product details.</i></p>