3M™ Insta Lok™ Hand Block 952, 3-3/8 in. x 5-3/4 in. 

?3M™ Insta-Lok™ Hand Block is ideal for pre-prep and final prep of metal, wood or plastic surfaces when hand sanding is desirable. It is constructed of durable plastic that is easy to grip and has a hook-and-loop style attachment that firmly holds 4 x 6" non-woven surface conditioning sheets.

• Firm, durable plastic block provides support for non-woven abrasives
• Block is easy to hold with integral handle
• Use with 4 x 6" non-woven sheets
• Good block for hand sanding in pre-prep and final prep of metal, wood or plastic surfaces
• Unique hook-and-loop style design is five times stronger than typical hook-and-loop attachments
• Separates easily for changing abrasive