Dry-erase markers are optimized for use on contemporary glass surface boards to deliver bold color & excellent visibility. Liquid ink delivery system ensures your writing is bold with consistent color so your message will be read loud & clear. Bullet point creates thick, broad lines that make your writing more easily seen & read by others. Regardless of how you grip them, these markers write evenly on glass boards, delivering ink in solid lines so your handwriting stays consistent throughout your presentation. Low-odor, nontoxic ink erases easily & helps prevent irritation for safe use in any environment. Easy-view ink gauge lets you easily judge exactly how much ink remains so you can plan ahead & ensure you're never without a marker when you need one.