MATERIAL: Made of good quality PC, and sturdy, featured with smooth surface and comfortable hand holding, long length making, convenient and portable. Can be used for a long time. USAGE: These letter openers are widely used at home or office for letter opening, package opening, paper box opening without hand handle. DESIGN: Designed with a hole at the top of the letter opener, convenient to hang up and space saving. You can hang them up when they are out of use to avoid children hurt due to the sharp end. TIPS: Suitable for for elder and kids more than 10 years old. DESIGN: Enough length for opening envelopes or letters with proper width for hand holding.