Zeiger Professional Watch Repair Tool Kit, Watch Band Spring Bar Link Pin Adjustment Watch Back Case Removal Opener Watch Batteries Changing Replacement Resizing Tool STURDY & DURABLE: High Quality Control. Not suitable for large watchThe maximum extensible range of this three-pin case opener is 35mm. Saving money and saving time. 5 PCS TOOL INCLUDES: 1 three-pin case opener, 1case with 12 pins, 1 screwdrivers, 1 tweezers, 1 case opening knife. Item comes with a orange storage case & manual. MUILTI-FUNCTIONAL: Perfect for tasks: opening watch backs, changing watch batteries etc ALL ESSENTIALS IN: Contain essential bracelet adjustment watch repair tools, suit for both professional and general use. Replacement or refund for all quality-related issues. Welcome to contact us if you meet any problem on using this item.