description plank tapping block the crain no. 563 plank tapping block is made from a black plastic block with relieved edges on a side and an end. used to tap the side of the plank to fit the tongue and groove. california proposition 65 warning. specifications acme tools brand name crain acme tools part number 563 assembled weight (lbs) 5.0 california proposition 65 warning required yes globaltradeitemnumber (gtin) 00734995563003 package weight 6 package weight (lbs) 6 upc 734995563003