The product is a set of 16 sticky 1/4 oz weights designed for the John Bull Trains O Scale Track Cleaning Car. Made of (lead-free) pressed steel and featuring a black color, these weights are ready to go and pre-built for easy use. With a scale of 1:48 and an analog control system, they are suitable for model railroads and trains enthusiasts aged 17 years and up. The track cleaning pads are lead-free and designed for a three-rail system, perfect for transportation-themed layouts. Manufactured in the United States in 2026, these weights are a great addition to any O scale train layout.