This item is a green chroma key backdrop used for photography and video production. Material: Typically made from high-quality cotton muslin or durable fabric. Dimensions: Common sizes include approximately \(3\text{m}\times 3\text{m}\) (\(9.2\text{ft}\times 9.8\text{ft}\)) or larger, such as \(2.8\text{m}\times 4.0\text{m}\). Features: Features interlocked or crimped edges to prevent tears and is machine washable. Usage: Ideal for studio chroma keying (green screen effects) to replace the background in post-production.