Rustproof Pulleys – Ensure long life and value for money without compromising on quality. Industry approved and can hold a maximum sash weight of 25kg. Great for those middle range jobs where a strong, durable fitting is required at an economical cost. Designed for use with a comprehensive range of lead weights, these pulleys will ensure a long life and value for money. These pulleys are particularly useful for windows on or around coastal areas, where metal is prone to rust.