You are purchasing a 81 piece Gage Block Set Grade B. Model: 908606 This Gage Block Set in great condition and fully guaranteed. 81 Piece Gage Block Set Rectangular Steel Blocks .05- 4 9 Blocks .1001 thru .1009 Step of .0001,49 Blocks .101 thru .149 Step of.0001,19 Blocks .050 thru .950 Step of .050,4 Blocks 1.000 thru 4.000 Step of 1.000 Grade B Wooden Case Shipping and Handling is $9.90 in the Continental USA. Additional prep fees may apply.