The JW-505 model is a 20cm plastic ruler with dimensions of 210 x 40 x 3 mm. It comes in transparent and fluorescent colors and is highly useful as a promotional item as it allows for clear printing of corporate logos or promotional text. Up to 4-color silk screen printing is possible, and production takes 5-7 days after ordering. Each item is individually wrapped in OPP, making it great for promotional gifts for schools, companies, and public institutions.