Made from food-grade stainless steel 304 Rust and corrosion-resistant Unique book-like opening for easy use Ensures your silicone mats remain upright for thorough washing Compact Space-efficient in the dishwasher One size fits all | Suitable for a variety of dishwasher-safe silicone items Open dimensions: 17" x 24" x 0.5" Closed dimensions: 17" x 12" x 0.5" USA small business owned and operated