Aux Gen 1 Relaxed Short Channel 00-20 Party TigerAux is designed primarily as an FTM mini pen but can also double as a vibe sleeve. Exterior Size: All Length: 4" Tip Diameter: 1" Circumference of Tip: 3" Shaft Base Diameter: 1. 5" Shaft Base Circumference: 5" Interior Size: Relaxed Relaxed Short Tight Tight Short Length: 2. 75" 1. 25" 2. 75" 1. 25" Width: 0. 8" 0. 5" 0. 8" 0. 5" Notes: Due to the curved bottom and the process involved in creating it, Aux has a tendency to catch small air bubbles on