Feature: 100% Brand new and high quality This product is a gap measuring ruler for tooth, which made from high quality material for durable and long lasting use The gap gauge is one of the measuring instruments used to check the interdental space High precision, smooth and clean appearance, good wear resistance Can be sterilized in a steam autoclave, dry heat autoclave, or in chemical cold sterile Set includes following sizes: 0.10 mm, 0.15 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.40 mm, 0.50 mm Description Material: Metal Color:Silver Size:About 4.5x1.2x1cm/1.7*0.47*0.39in Package Included: 1X Set measuring rulers Note 1.Our size are Asian Size,1-2 size smaller than euro size,please choose your size according to the size chart. 2.Due to the hand measurement, there have size error about 1-2 cm.Item color displayed in photos may be showing slightly different