SelfTek Durable Quartz Clock Movement Mechanism Repair Simple DIY Tool Kit with Red Hands Replacement Three needles should be installed separately and do not ovoverlap as much as possible Pointers are made of thin aluminum or iron plate Mute scanning movement, suitable for 1 - 3 mm thickness clock panel Applicable to cross-stitch, three-dimensional embroidery, craft clock, frameless draw clock, etc Size:Approx. 3.22(hour hand)*4.05(minute hand)*5.19(second hand) inch