Satisfyer Orgasm Training Balls
The lightest blue version, at 2oz/574g is a perfect start point to kegel practice. It'll provide the least resistance and require the least amount of 'flex' to keep it in place. If you find the blue ball a breeze, you can move on to the medium pink version at 2.9"/82.2g. The red ball is the heaviest, at 3.7oz/104.9g, and will be a great incentive to work up to.