(fencing) A device used in electrical fencing to detect whether or not a weapon has struck an opponent, which connects to the fencer's weapon by a spool and body wire. It works by using lights and audio to notify successful, with different coloured lights for on focus on and off https://gabletoppak.com/glass-bottles-for-beer-soda-and-even-water-found-to-contain-toxic-levels-of-cancer-linked-microplastics-than-plastic-bottles-study-says/