Siafast abrasive block, medium/soft. Makes life easy. A double sided sanding block with ‘velcro’ type attached abrasives. Gives 100% use of abrasives. The two foams and cushion effect of SIAFAST gives an even contact on flat and curved surfaces. Allows you to sand up to glass without scratching. Double sided to let you have two grits in your hand at one time.
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