Badminton Shuttlecock Roll Humidifier Lid

Shuttlecocks tend to dry out in their storage rolls, which greatly reduces their lifespan. This lid with moist Hydro-bead elements provides constant moisture release, preventing premature drying and the associated reduction in ball life.
Approx. 10 Hydro-beads (Pearl.de) are pressed into the upper hole. The entire lid is then immersed in water for a few hours so that the beads can absorb water. Afterwards, the lid can be placed on the badminton roll and the balls will be provided with a humid roll environment for several weeks, which increases the lifespan of the shuttlecocks.

The opening for the Hydro-beads is 3.7mm in size. So, no significantly larger beads should be purchased.

These beads should work. (Not tested myself!)

https://amzn.eu/d/1BDpBbR

The TPU lid version can be printed without support.

Versions:

Version: V7-2 (Tight-fitting lid version when using very soft TPU material)

Version: V7-4 (Seal lip reduced in diameter by 0.6mm, better roll-on behavior - 02.03.2023)