The Evergreen StripStyrene Plastic Tubes 0.312 (5/16) from the plastic building materials range provides a set of high quality plastic tubes ideal for adding detail to your models, scratchbuilding and architectural models. Length: 14" (350mm) Imperial Dimensions: 5/16" Metric Dimensions: 7.9mm Pieces per Pack: 3 Manufacturer: Evergreen StripStyrene Model: EG230 Plastic Tubes 0.312 (5/16)