The Handlock R15 35x35 nickel security cylinder is a reliable option for protecting your home or business. With a 10-piston system and 5 plastic-headed key blanks, this cylinder offers high strength and durability of over 100,000 cycles. Its design includes anti-bumping, anti-drill, anti-break, anti-crowbar, anti-extraction, and anti-pick protection, guaranteeing a high level of security (level 4). It is also suitable for master keying and compatible with the JMA CI-21 (42705) key blank. Measuring 35x35mm and finished in a high-quality nickel finish, this cylinder is an excellent choice for keeping your spaces protected effectively and lastingly.