Manufacturer name: Urayani Shoji Co., Ltd. [Features] You can replace the inside arrow directly from the parting surface (PL side) without removing the entire date mark. YM models (year display) that require a replacement of the inner arrow (axis) will be able to replace the year without the mold falling apart. The finish of the sculpture and dimensional accuracy are as high quality as the traditional OP model. Direct replacement of inside door rows from the parting surface (PL side) without removing the entire date mark. YM models (year display) that require replacement of the inner arrow (axis) of the year can be replaced without the mold. The finish of the sculpture and dimensional accuracy are as high quality as the traditional OP model. [Uses] Plastic Embedded Specifications Outer Diameter 0.3 inches (8 mm) Total Length 0.4 inches (10 mm) Disclaimer: OM type (month) Weight 0.1 oz (3.4 g) [Material/Finish] SUS420 Hardened Polished Finish