We have already completed some products with a weight of 0.9KG per piece. Now, changing it to 0.5KG per piece will require some effort (increased labor, increased loss, etc.). However, we prioritize your needs and consider customer satisfaction as our top priority. Therefore, we will reconfigure the product weight to 0.5KG per piece as per your request. We hope you will be satisfied with this. Thank you very much.
We he already made some products with 0.9Kg, it does take more time and manual labour to revise it as 0.5kg.
But regarding the aim of customer first and good service, we will re-make the product as your requirement.