Size Information -- Size is about 7cm/2.8 inch wide, 15.2cm/6 inch long, 1.4cm/0.6 inch thick, hole: 2x0.8cm/0.8x0.3 inch and 3x0.9cm/1.2x0.4 inch Durable Material -- Our polymer clay hoop measuring guides are made of acrylic material, thicker than regular clay hoop, they are multi-functional tools that are stable and durable to serve you for a long time Easy to Use -- Even beginners or first time clay players can complete this fun and simple DIY project, the slot on the acrylic plate can be used to fix your clay circle, it's a good choice to use it for air-drying and baking, free your hands Practical Tool -- This clay tool is lightweight and easy to use, professional soft pottery tools can make your clay crafts accurately and efficiently, a must-have tool for soft pottery beginners and professionals Versatile Use -- The molds have two sizes of slots for both small and large, which can be used as molds to hold your creations and make your own unique clay earrings, as well as displaying the beautiful handmade jewelry you've already finished