Specification Brand : PROGLASS Color : Clear Label : PROGLASS Manufacturer : PROGLASS MaterialType : Glass NumberOfItems : 1 PartNumber : easy open clamp 250mL or 500mL ProductGroup : BISS Basic ProductTypeName : HARDWARE_CLAMP_VISE Publisher : PROGLASS SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41+P6M3AilL._SL75_.jpg SmallImage_Width : 75 Studio : PROGLASS Title : Proglass Easy Open PTFE Clamp fit with The 250mL Or 500mL Separately Flask and The Cap