The simple, safe and efficient envelope opener with concealed blade design minimize the chance of cutting skin and the letters contents, very safe and efficient tool for opening letters, envelopes and packages. This letter openers are made of high quality plastic and stainless steel blades, which are sharp enough but safety to cut varieties of letters and envelopes. The envelope slitter is designed with the perfect size for the hand to hold it, and it also has a useful hole. 3" L x 1.8" W x 0.13" H