1、Made of high quality ABS plastic and zinc alloy, more durable. 2、The product is very song and it can effectively prevent children from breaking the lock. 3、Using three-digit password, password is not easy to crack. 4、The use of products and password changes are very simple, you can easily complete the settings according to the insuctions. 5、28cm inner diameter, sui for various types of wine bottles. Note: Please take care! This product contains English insuctions, which record in detail the use of password locks and password modification methods. Feature: Made of high quality ABS plastic and zinc alloy, more durable. The product is very song and it can effectively prevent children from breaking the lock. Using three-digit password, password is not easy to crack. The use of products and password changes are very simple, you can easily complete the settings according to the insuctions. 28cm inner diameter, sui for various types of wine bottles. Specification: Material: ABS, Zinc alloy Color: Black Product dimension: 44*45mm /1.7*1.8in Internal diameter: 28mm / 1.1in Weight: 34g / 1.2oz Application: Bottle lock Package list: 1 * Password lock 1 * Iwhite-space:normal;nsuctions Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.