Abstract: The embodiments herein relate to a weight system enabling a user to configure the system for the performance of various exercises. The invention comprises a multiplicity of generally cylindrical weights which are inserted into weight receiving bores equally spaced around a central bore of a generally cylindrical body with a first and second face. A post with at least one end is configured to releasably engage the central bore on the first face of the body. A first collar releasably engages the first end of the post proximal to the body to prevent the weights from exiting the weight receiving bore to form a kettlebell. In an alternate embodiment, the second end of the post is configured to releasably engage a central bore of a second generally cylindrical body which mirrors the configuration of the first generally cylindrical body to modify the kettlebell configuration into a dumbbell configuration.