Snap-on model 3/8ADCF8 monkey wrench, made of metal with a maximum opening width of approximately 30mm. - Model: ADCF8 - Maximum opening width: Approximately 30mm A 3/8 extension can be inserted for use. Width adjustment is not a problem. There are fine scratches and dirt on the surface. We will wrap it in cushioning material for shipping. Thank you for viewing.