Specification Brand : Wicks Aircraft BulletPoint1 : Includes one 11" rectangle block and one 5.5" wedge sanding block BulletPoint2 : Made with tungsten carbide, second in strength to diamond BulletPoint3 : Each block is double sided, rough 60 grit and fine 120 grit. BulletPoint4 : These sanding block will tolerate years of use and abuse. BulletPoint5 : Our two most popular sanding blocks in one set Color : 4pcs CompatibleMaterial1 : Glass CompatibleMaterial2 : Metal CompatibleMaterial3 : Concrete CompatibleMaterial4 : Stone CompatibleMaterial5 : Ceramic CompatibleMaterial6 : Wood IncludedComponents : Sanding Block ItemName : Perma-Grit Sanding Block Set, Includes 11" and 5.5" Tungsten Carbide Sanding Block, Double Sided, Fine and Coarse Grit ItemPackageDimensions_Height : 36 centimeters ItemPackageDimensions_Length : 4.4 centimeters ItemPackageDimensions_Width : 11.4 centimeters ItemTypeKeyword : sanding-blocks ItemTypeName : Sanding Block Manufacturer : Perma-Grit Material : Aluminum, Tungsten ModelName : Perma-Grit ModelNumber : SB-SET NumberOfBoxes : 1 PartNumber : SB-SET PowerSourceType : hand_powered ProductDescription : These sanding blocks will quickly become one of your favorite tools in the workshop. Great for hobbyist and professionals. The curved sides of the block will fit your hand, making for an easy and comfortable grip. The Perma-Grit line of sanding blocks can save you hundreds on sandpaper over their lifetime. What is there lifetime? I don't know, I've never worn one out! ProductSiteLaunchDate : 2020-02-19T17:12:31.424Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 2