Portable Gold Washing Basin w/ Double Riffles Nugget Mining Pan Dredging River Exploration Gold Ning Ning Equipment 40JEOOTDTYCeaches: 4 Different Colors, Black/Blue/Green/Blue, Diameter: 38cm/15-inch. The Dual Riffle technology allows for efficient collection of all particle sizes alluvial gold without losing any fine specifications. Molded from one piece of high-impact ABS plastic, this gold panning is lightweight, non-rusting, UV-resistant and floats. For gold panning, it includes both a deep and shallow riffle sidewall, allowing for better separation of gold from other heavy minerals similar to an airlock box. Large riffles catch gold similarly to riffles in an airlock box, leading to a faster panning process, allowing you to process more dirt. Specification: Material: Plastic Diameter: 38cm / 15in Color: Black/Blue/Green/Blue Package Included: 1x Gold Panning BulkNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.