Material: 1. High-quality acrylic and silicone, non-toxic and non-allergic. It is lightweight, very flexible, safe and healthy to wear. 2. There are almost no dents in the plug, so the O-ring will not fall off too easily. The tapered section is made of acrylic and comes with 2 o-rings to hold it in place 3. The earmuffs include three styles: acrylic tip, acrylic UV segment, and acrylic snail ear. Size: 1.6, 2, 2.5, 3, 4, 5, 6, 8, 10 mm, 9 sizes in total, each size is a pair (two). Package Contents: The set comes with 54 ears in total, each style is packed in one OPP bag. 18 Acrylic Cones with Double O-rings - 14G=1.6mm, 12G=2mm, 10G=2.5mm, 8G=3mm, 6G=4mm, 4G=5mm, 2G=6mm, 0G=8mm, 00G=10mm. When shopping, please pay attention to the size and measurement of the product to ensure that it will meet your needs. In the heading and , we provide detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so please feel free to contact us if you have any questions or concerns. We are here to help and will do our best to help you. Thank you for choosing our product. we hope you like it