Product FeaturesSmooth Cup BodySLR Camera Lens CupEasy To CleanProduct SpecificationMaterial: Stainless Steel + PcBefore Stretch: 15.7cmAfter Stretch: 17.8cmVolume: 350mlColor: Black， WhitePlease Note1. With the differences in the measurement method， please allow 1-3cm in size deviation.2. There might be slightly difference in color because of the computer monitor settings.Please understand.