(fencing) A tool Utilized in electric fencing to detect regardless of whether a weapon has struck an opponent, which connects to a fencer's weapon by a spool and system wire. It works by using lights and sound to inform a hit, with diverse coloured lights for on goal and off https://gabletoppak.com/from-plastic-bottles-to-gabletop-cartons-a-step-toward-solving-the-plastic-pollution-crisis/