Made with 50% recycled polypropylene. Displayed in accordance with Article 18 of Occupational Safety and Health Regulations. Specifications: 0.1 inch (2.5 mm) diameter hole 4 threads; Dimensions: 23.6 x 17.7 inches (600 x 450 x 1.2 mm); Mounting specifications: 4 holes; Display contents: duties of the worker such as scaffolding; Installation method: screws (screws sold separately); Country of origin: Japan; Comes with manufacturer direct payments only in advance. Please be aware that payment cannot be specified on delivery or time. Please note that this product cannot be picked up in store.