• 4 lines with 40 cells each
• Pins up
• Made of lightweight, durable aluminum
• Easily fits in a briefcase or backpack
• Slate measures: 11-7/8 x 1-3/4
4 lines with 40 cells each. Pins up. Long slate allows user to Braille 4 longer lines at a time. Slate measures: 11-7/8 x 1-3/4. Made of a lightweight, durable aluminum that will last for years and fits easily into a briefcase or backpack.