ITEM NAME:2*Watch Battery Change Watchmaker Case Back Cover Lid Opener Opening Knif TTY Descriptio n Specification: Material: plastic + alloy Color: Yellow + Red Size: Red: 115mm, yellow 82mm. Description: Watch Opener configured to make opening certain cases easier. This Pocket Watch Opener is popular and ideal for many watchmakers. Simply place the blade under the case back and pry it off. Product list: 2Pcs x Watch Opener Kit Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! Watch Back Cover Case Opener Remover Battery Change Watchmaker Repair Tool.Watch Back Cover Case Opener Remover Battery Change Watchmaker Repair Tool. This Pocket Watch Opener is popular and ideal for many watchmakers. Product list: 2Pcs x Watch Opener Kit. We'd like to settle any problem in a friendly manner.