Ball-shaped subfloats with slightly flattened ends and a buoyancy of 5 gram. Tube diameter: 2.0mm. Can be used as a single, mini subfloat or be combined to a 5, 10, 15 or 20 gram subfloat. When not pushed too tightly together they can move independently. Keep them in place with a MADCAT® Super Stopper. 4 pieces/ packaging.