The mold size 15.330.51. For the bottom diameter of the shot glass is under 1.53.8cm. Great for shot glasses like long short bottom shot glasses. The mold is perfect size not too thick/thin. You can use to make your own design bar decorThe soft silicone structures make it durable reusable and washable. The inside surface of the mold is smooth for easy removal. Please ensure the correct side is usedSuper cute and fun. Get it and make a gift for your family or friends. Perfect mold for the bar decor lovers. It is made with quality materials silicone is very firm. Imprint letters Give It Your Best ShotEach finished tray can hold 4 shot glasses compatible with most casting materials such as polymer clay plaster resin wax clay etc. keep away from fire or heat. Dont use a heat gun or torch to solidify the resinGreat Mold for resin Artists. It is easy to make and convenient to carry. just use some bold colors or elements sometimes add some pigments or shiny decors into the resin during the process to make the finished product more delicate