Listings show a mix of mechanisms: pin-tumbler (keyed) cylinders, warded locks, resettable “set-your-own” combination dials (keyless), and 4‑pin cylinder or combination styles with added locking features such as dual locking levers.
Most small Master Lock padlocks are sold as single packs (package quantity: 1). Some models are also offered in multi-packs, for example 4‑packs.
Descriptions show two main approaches: keyless models use set-your-own or resettable combination dials, while keyed models use pin-tumbler cylinders (sold with keys). Some products are offered as keyed‑alike sets. Check the product listing to confirm whether a specific padlock is keyless or comes with keys.
