Professional Watch Opener Watch Back Case Opener Wrench Set for Breitling Watch 4-35-36-38 Repair T Made of high quality material, durable and wear-resistant High quality for professional use Help to repair your watch, help you easily open the watch cover Specifications: 34#12-sided, inner diameter: 36mm 35#15-sided, inner diameter: 36mm 36#15-sided, inner diameter: 38mm 38#15-sided, inner diameter: 41mm Applicable Model: for Breitling Watch Colour:silver Material:steel Package Contents: 4 x Back Case Openers 1 x Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.