Isomars Engineering Combo Contains - *Mini Drafter - Student includes Steel Rod Metal Frame Unbreakable Scale. *Set Square Set of 2 *Art # SS1012 - 10" x 12" *25cm/10" - 45° x 30cm/12" - 60° *Clear Plastic Bevel Edge With Protractor. *Pro Circle * Art # P45 *11cm/4.5" *Clear Plastic *Thickness : 1.8mm. Ruler 12" *Art # Y12 *Clear Plastic *Both Side Bevel *Size : 300 x 40 x 2.5mm Isomars Mechanical Pencil is designed for long-lasting use. Non slip grip for daily writing. It is the suitable tool for sketching and drawing. Superior drafting pencil for general and technical writing. Comes with eraser.