The Pulsar Marble Donut Oil Rig features a fixed downstem with an inline percolator that filters hot vapour as it travels up into the donut shape. The shape of the pipe helps prevent splashback from occurring. The rig stands 8.75 inches tall and features a 14mm female joint. Includes a 14mm male quartz banger. Sold in assorted colours that may vary from images. Dab Rig Features: Use: Concentrates Size:8.75" Round stable base Durable boro glass Worked glass decoration Inline percolation Assorted Colours (Colours Vary) What's in the Box: 1x - 8.75" Donut Rig with Flower Marble by Pulsar 1x - 14mm Male Quartz Banger