Feature: 1. 1‑11 digit combination key password setting. Double‑sided password, passwords are required for both internal and external doors, with channel anti‑lock function and indoor anti‑lock function, any internal and external locks or knobs can be interchanged. 2. Completely mechanized, no battery or wired power is required. 3. suitable for wooden doors, patio doors, courtyard doors, indoor and outdoor doors. 4. Sturdy fixing bolt design, no noise, provide you with a quiet using experience. 5. Made of high‑quality zinc alloy material, anti‑rust, durable and has a long service life. Specification: Condition: 100% Brand New Item Type: Double‑Sided Mechanical Password Lock Material: Zinc Alloy Weight: Approx. 1830g / 64.6oz Front Handle Product Size: Approx. 142 x 42 x 25mm / 5.6 x 1.7 x 1in Rear Handle Product Size: Approx. 142 x 42 x 25mm / 5.6 x 1.7 x 1in Rubber Sealing Size: Approx. 150 x 50mm / 5.9 x 2in Rubber Sealing Hole Size: Approx. 10mm / 0.4in The Distance between The Rubber Sealing Hole Size and The Center Point of The Hole: Approx. 130mm / 5.1in Key Tounge Size 1: Approx. 81 x 60 x 57mm / 3.2 x 2.4 x 2.3in Key Tounge Size 2: Approx. 25 x 20 x 15mm / 1in Password Length: 1-11 Digits Applicable Door Thickness: Approx. 30-60mm / 1.2-2.4in Applicable Environment: Waterproof and High Temperature Resistance Applicable Type: Indoor / Outdoor Door Function: No need battery or wired power Package List: 2 x Panel2 x Rubber Pad2 x Key2 x Door Buckle1 x Key Tounge1 x Shaft1 x Support Pin4 x Screw3 x Fixing Screw1 x English Instructions