What material is typically used for making grave straps?

The use of webbing or similar materials for making grave straps is primarily due to their durability, flexibility, and ability to securely hold and transport caskets and other burial-related items. These materials are strong and can withstand the stress and weight when lifting or securing caskets. Additionally, webbing is lightweight and easy to handle, which facilitates its use in various burial situations.

Other materials like metal, wood, or plastic would not provide the same benefits. Metal could be too rigid and heavy, making it impractical for flexible applications. Wood, while sturdy, does not offer the same ease of handling and can be more cumbersome. Plastic may not provide the strength needed for secure lifting and can degrade over time when exposed to natural elements. Thus, webbing or similar materials are the most suitable choice for grave straps, balancing strength, functionality, and ease of use.