【IPX8 Waterproof Style & Compact Sizing】Removed The waterproof ring design and style for a more compact measurement. Still waterproof to IPX8. We've got created a water-proof line on the inside edge of the solution (integrated into the item) making sure that h2o can not penetrate providing the screws are tightened. https://www.wanderlustprogear.com/products/airtag-dog-collar-adjustable-for-apple-airtag-silicone-case-designer-collar-for-small-medium-large-dog-pet-gps-accessories