Material Acrylic Brand Isomars Colour black Style MTC03 Product Dimensions 20L x 15W Centimeters About this item Contains Isomars Technoart Technical Drawing Pen Set of 3 , 1 Black Ink, 1 Engineering Compass , 1 Compass Attachment, 1 Joint Holder ,and 3 Pen Stations ,Isomars Set Square - Professional/Protractor Set Square made up of clear acrylic , with bevel edge Isomars Marine/Nautical Parallel Bar - Professional - made up of clear acrylic, has Brass joints with markings Ideal for students/mariners/navigators Isomars Technical Marine Combo Set contains 1. Isomars Technoart Technical Drawing Pen Set of 3 ( 3 Pens 0.2, 0.3, 0.5mm and1 Black Ink), 1 Engineering Compass , 1 Compass Attachment, 1 Joint Holder ,and 3 Pen Stations 2.Isomars Set Square - Professional/Protractor 25cm/10",has wooden handle, markings in mm/cm made up of clear acrylic, has bevel edge, Thickness : 2.8mm 3.Isomars Marine/Nautical Parallel Bar - Professional Dimensions : 525 x 5mm (21") made up of clear acrylic, has Brass joints with marking