Made in USA Model No. S0101 5 in 1 tool: Try Square, Miter Square, Saw Guide, Line Scriber, & Protractor Black engraved markings for easy reading 1/4 \” spaced notches to facilitate scribing lines Made of high-grade aluminum alloy construction Matte finish to prevent glare Includes handy \”little blue\” pocket booklet Product Description Specs The Classic Swanson 7\” Speed Square with Blue Book. This unique tool is actually five tools in one: a try square, a miter square, a protractor, a line scriber, & a saw guide. It is constructed of durable heavy-gauge aluminum alloy & has engraved markings for \”Swansons One-Number Method\” of rafter layout. It is also packaged with the Swanson\’s \”Blue Book of Rafter Length & Roof Construction\”. A very handy pocket booklet. Made in USA. Product Overall Size Square Thickness Weight Model # Swanson 7\” Speed Square with Blue Book 7\” x 7\” x 10\” 3/16\” 0.5 lb S0101 For California Residents: WARNING: Cancer & Reproductive Harm – www.P65Warnings.ca.gov WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood