Descrtion:100% and high qualityMade of premium plastic and silicone, durable and reliable.With on diameter mark on it, suitable for different size of ons.Practical hand sewing tool for home .Easy for apply and .Specifications:Color: black+grayPackage size: about 22*7cmMaterial: plastic, siliconeWeight: about 50gPackage Included:1 set of on sewing toolNote:1. Due to the light and screen difference, the item’s color may be slightly different from the tures.2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering.