11.Premium Silicone -Our rings are all made of pure silicone.They're comfortable,smooth,non-conductive and definitely safe even for sensitive skin.they're flexible &durable and it won't out of shape even being strong pulled compared to other silicone rings. 22.Perfect fit: There are 7 sizes (4 5 6 7 8 9 10) to choose from. width: 5.7mm; thickness: 2mm. which is strong and durable, but surprisingly soft and elastic, ensuring comfortable wearing. 33.Great Protective -These silicone rings can replace your traditional wedding ring not to be damaged from heavy work or strenuous exercise like electrical work,swimming,weight lifting ,etc. 44.Multi-colored Stylish Rings-Stylish rings in different colors.Were confident that you will love them! You can choose which one you want to wear everyday. 55. Excellent choice: Lightweight and flexible rings are ideal substitutes for precious wedding rings when you work, exercise, outdoors or travel.