All of the dumbbells we recommend are high quality and will last for many years, and even decades if taken care of properly. Since dumbbells are made of durable materials, they won’t break or rust over time. It is most important not to drop, throw or be too rough with the dumbbells, which can damage or even break the spin locks on weights, which could make them unusable. As long as you carefully set them down in between sets and when racking, they will last as long as you want to use them.