Custom-Urns R us 310 Blk Live To Ride Motorcycle Tank oversized capacity 500 cu.in.- large enough to serve as a companion urn made in USA! light weight but made of strong fiberglass No Plate Offered!! It is large enough to hold two people easily (500 cu. in.), but is used mostly for one person. It is made of two pieces of fiberglass and sealed with a high grade silicone making it water tight.