This double hammer kit is the perfect addition to any jewelry repair kit. Based on our own experience, we found these hammers to be extremely efficient in helping us repair and maintain intricate pieces of jewelry. They are lightweight yet durable, making them easy to handle for extended periods of time. The only downside we noticed was that the hammers can be a bit loud, but that is a small price to pay for their exceptional quality. Overall, we highly recommend these hammers for all your jewelry maintenance needs.