This is a combination lock that is suitable for a wide range of security uses. It has an 8mm shackle that adjusts from 105-160mm and a weatherproof textured powder coated finish. The lock is preset at the factory to open at 0-0-0-0, and has a shackle size of 20 x 7.5 x 2.7 cm and a diameter of 8mm. It is a reliable and durable choice for anyone who needs a combination lock for their gates, sheds, windows, or doors. The lock is easy to use and is suitable for a wide range of applications. It is a handy tool to have on hand in any workshop or home.