Perfect Fit: Compatible with size 6-10 rings for a snug fit. Easy to Use: The elastic design makes it easy to put on and take off, fitting most sizes comfortably. Lightweight & Comfortable: Made from soft silicone, it provides a barely there fit for all-day comfort. Stylish Colors: Choose from a range of vibrant colors to match your mood or outfit. Active Protection: Protect your smart ring during yoga, sports, biking, and everyday activities. Dimensions: 5.75 x 4.06 x 0.39 inches.