Bumper on the bottom of the lock for scratch resistance</br>Rust resistant</br>Dual locking levers for pry resistance</br>One and a half-inch long shackle provides reach and flexibility</br>Nine thirty seconds-inch diameter hardened steel shackle</br></br>Product Description</br></br>Master Lock 380QLFHC padlocks feature a four pin cylinder with over three thousand key changes to prevent picking. The bodies are constructed of  laminated steel with Rust-Oleum certified protection black finish.</br><br/>http://www.amazon.com/gp/product/B00898AE9M