Features: Made of high-quality silicone material, soft and comfortable, safe and nontoxic, has a long service life. Durable rubber watch band loop. The watch band loops are made up of very durable silicone, resin material which fits very well with the band and hold it well, comes in black color, which suits all the different color type band. The replacement fastener sleeves will match well with your watch. Easy to use. Just slide the ring over the clasp. Best replacement safe rings for the watch band. Perfect fit for your for smart watch activity tracker and provide comfortable wearing experience. Watch band fastener ring only, other accessories demo in the picture is not included! Specifications: Material:Silicone Size: As Picture Shown Color:Black for Suunto24mm Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 10x Watch Band Fastener Ring