DEWALT DW7187 Adjustable Miter-Saw Laser System The item is DEWALT DW7187 Adjustable Miter-Saw Laser System Used for Woodworking, Portable Table Saws The product is manufactured in Thailand Adjustable laser line allows user to adjust line to the left or right side of blade. Protected laser diode in optimum location delivers long-term durability while keeping laser diode clear and visible On/off switch allows laser to operate with or without blade spinning Compatible with DW713 Type1, DW715 Types 1 &amp; 2, DW716 Types 1- 4, DW717 All Types and DW718 All Types Bright laser line delivers enhanced visibility in low and high light locations Upper guard mount location line visibility through entire range of motion, powered by saw (no batteries)