Similar keys - all locks can be unlocked with the same key
Four padlocks and twelve keys - one key is capable of opening all four locks
Rust-proof & strong durability : Strong body made entirely of zinc and STAINLESS STEEL (SUS 304) shackle with strength and weather-proof abilities provide strong resistance to cutting. Corrosion-resistant materials, such as brass, STAINLESS STEEL, and zinc, were used to make the internal components.
provides excellent performance and durability even in a poor outdoor environment such as snow and rain
High security : The 7-pin brass cylinder provides excellent durability and ensures protection and security against theft. The high precision key makes it difficult to arbitrary unlock.
The locking mechanism’s key provides more than 10,000 combinations.