Head lamp - New 2018 Led Rechargeable Headlamp Flashlight With 18650 Battery - Bright Waterproof Headlamp for Camping Hunting Running Hiking - Outdoor Led Headlight Flashlight - Black Not to be confused with poor quality versions available elsewhere. Manufactured specially for us to our own very high standards designed to fit standard 7/8"basin overflow holes simply pushes in and clicks in to place, no tools are required made from tough high quality plastic that grips better than metal and won't scratch the basin