SANDFLEX TRACK ABRASER BLOCK: 120 grit; (have only 2 left)

• Made of semi-flexible rubber compound with grits impregnated throughout the block
• Excellent for keeping railheads clean.
• Can be used wet or dry
• These blocks will last for years of rust removal. Do not confuse these with the standard sanding blocks you can buy in the store. These have abrasive material through the whole block. As the block wears, new abrasive material is uncovered.