Specification Brand : MeterTo BulletPoint : Single BulletPoint1 : The lead time is about 3 business days, Fedex/DHL/UPS Shipping to USA is 4-7 days; BulletPoint2 : Material: 1018 Steel; BulletPoint3 : This 4-step calibration block is "inch" unit: 0.040" 0.060" 0.080" 0.100"; BulletPoint4 : Length * Width: 3.2" x 0.8". Color : White ExternallyAssignedProductIdentifier : 3131174152695 ItemName : Thin 5 Step Ultrasonic Calibration Test Block, 1018 Steel - 0.5mm /1.0mm /1.5mm /2.0mm /2.5mm ItemTypeKeyword : gage-blocks Manufacturer : MeterTo ModelNumber : MT-5-MM PartNumber : MT-5-1018-0.5MM ProductDescription : MeterTo MeterTo mainly offers instruments and tools. Please confirm the product is offered by our store MeterTo when purchasing, otherwise we can't ensure the quality and after-sale service.