The material is non-toxic and safe for your skin.Also,these earbuds are ultra-soft and lightweight,making inserting it in the ear canal a breeze.You will sleep like a baby with these noise-cancelling foam earbuds!The ultra-soft foam material makes the earplugs fit most ear canals,without making you feel the slightest discomfort.Also,these ear plugs are suitable for side sleepers,as they won’t slip out,or put any pressure on the ear.Customize with your company logo for a great brand publicity. Measuring 1*0.5 inch, this custom custom anti-noise ear plugs with box. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: Portable, durable, practical for daily use.