SPORTCOUNT LapCounter Model Waterproof Ring Lap Counter Tally - Swim Open Box 796150900405 | eBay
Lap Counter - Active Tech
Amazon.com : SC SPORTCOUNT LapCounter and Timer - Waterproof Lap Counter Timer for Swimming, Biking, Running Triathletes - Accurately Tracks Laps and Times to Help You Stay Focused : Sports & Outdoors
LED Lap Counters
LapCounter | Microgate
VS Lap Counter
DC-302C-W “Big 30 Inch Digital Speedway Lap Counter” – Customized Digital LED Timers, Counters, Clocks & Number Displays