sorry but what is it i know that them slots are for a flat head screw driver to fit into and a hammer to spin it...but thats as fas as my knowledge goes
LOOOOOOOOOOOOOL... just look at it for long enough an you will work it out.. but ye, i asked him to put up somthing he made quickish but was proud of.. and i think the works spot on (your deffo worth your wages m8)
its got nothing to do with scooters as the title says just for minor no mystery its a pipe connector?