Hi Peter, thanks for your review. The padlock is designed to go through only one hole. As pictured on the product page on the website, you can see this is not an error in manufacturing. https://www.hoselink.com.au/products/padlock?_pos=1&_psq=padlock&_ss=e&_v=1.0
If you have any other questions, please feel free to contact us directly at hello@hoselink.com.au.
Thanks, The Hoselink Team.