The aluminum version comes with six beads, weighing in at around 4g per bead, for a total of around 25g per six bead set, or 17g per 4 bead set. The beads themselves are 16mm in diameter and 8mm thick, making for 3-bead stacks of 24x16mm, and 2-bead stacks of 16x16mm.
The four-bead configuration plays very fast and light, and is extremely nimble. The six-bead configuration plays much slower, and feels substantial in the hand.
Because aluminum is a much softer metal than Ti, the surface of these will get dinged and scratched, and over time, the anodized colors will wear away, and the raw aluminum will show through. This aging process gives them a great texture which helps with grip and bead control. The Hydra AL Sport series come with a couple of extra strings, a couple of stickers, a canvas carry bag, and an info card to introduce new players to begleri. Stickers, bag, and cord colors may not be as shown, since these change with availability.