Thickness: 1.0mm Dimension:300x335mm Color:Black Material: Fiber Glass G10 FR-4 is a thermosetting industrial laminated material composed of epoxy resin adhesive cloth filament glass. Best Material for 3D Print Build Plates,No Warping and Curling,Easy Installation. Best DIY part build material: Low cost,reliably strong, lightweight, and has engineering and non-conductive properties,moisture resistance, can easily processed into different parts or models，RC model DIY handle and other universal reinforcement parts