This is a master or plug for a silicone mould, it comes with a printable wall inwich to dam the silicone rubber while castin gthe mould you can also use it afterwards to make sure that your mould maintians it's shape. Printed with PLA at 195 degc with bed temprature of 50 deg c layer height of 0.2mm and infil of 15%Print with your favorite filament, Filament = ABSInfill = 10%Layer height = 0.2mmExturder = 245 deg c Build plate = 60 deg c