brand new and high quality Features: This product is a for gap measuring ruler for tooth, which made from stainless steel material for durable and long lasting use. The for gap gauge is one of the measuring instruments used to check the inter-dental 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 Specification: Name: Dental for Gap measuring ruler Type: Oral Dental Interproximal measuring ruler Application: Measure the tooth for gap Material: Stainless steel Color: Silver Size:app. 45 x 12 x 6.3mm / 1.77 x 0.47 x 0.24in,as picture shown Quantity: 1set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1set x Dental for Gap measuring ruler(other accessories demo in the picture is not included.)