Polly Parrot Gas Station Gasoline 18&rdquo; Double Neon Wall Clock Tin Metal Sign Yellow Spectacular! High-Quality 18" Retro Style Double Neon Clock. 2 Hand Blown Real Glass Neon Rings. One Yellow Outer Neon & One Bright White Inner Neon. Dimensions: 18.75" Diameter x 5" Deep. High-Precision Quartz Clock with Sweep Technology (Smooth, 100% Quiet).