Colourful and cheerful easy to use kegel training balls. Features: Designed to strengthen pelvic floor muscles Made from silicone Set contains 4 ball of different weights and a double and single case Progressively weighted coloured balls (18g, 30g, 40g, and 55g) Waterproof Single holder measures 14 x 3.9 cm, Double holder measures 19 x 3.9 cm
