The Urth 77mm magnetic lens filter caps provide reliable protection for compatible magnetic lens filters, designed to minimize storage space. These caps are constructed from hardened magnalium, an alloy of magnesium and aluminium, ensuring durability and resistance to impacts. The magnetic attachment system allows for quick and secure placement, reducing the risk of accidental detachment during transport or handling. With a diameter of 77 mm, they fit standard magnetic filters and maintain a slim profile to avoid interference with other camera accessories. Ideal for photographers seeking efficient filter management, these caps help preserve filter surfaces from scratches, dust, and moisture. The neutral color and robust build support long-term use in various environments, emphasizing practicality and quality without unnecessary bulk.