A modern and functional thumb-turn cylinder lock designed for convenient and secure everyday door use. Thanks to the thumb-turn knob on the inner side, the door can be quickly locked and unlocked without using a key. Its solid construction, durable mechanism, and elegant brushed nickel finish make this cylinder an excellent choice for homes, apartments, and offices alike. Technical Specifications Product type: thumb-turn lock cylinder Size: 30/30G mm Body material: aluminum Mechanism material: brass Color: brushed nickel Type: single-sided thumb turn Number of keys: 3 pcs Mechanism durability: 50,000 cycles Installation: fixing screw included Key Product Features Convenient Internal Thumb Turn Allows comfortable locking and unlocking of the door from the inside without the need for a key. Durable Aluminum Body A lightweight yet sturdy construction ensuring stability and long product life. Brass Cylinder Mechanism A precision-engineered brass mechanism guarantees smooth operation and reliable performance. Durability up to 50,000 Cycles The cylinder is designed for intensive long-term use. Elegant Finish The brushed nickel surface provides a modern and aesthetic appearance. Complete Installation Set The set includes: 3 keys fixing screw