#10 Business Envelopes for Dependable Performance! Your business is too important to leave the details up to chance. What are your needs when it comes to envelopes? Quality professionalism convenience? These contemporary side seam envelopes feature a fully gummed flap for a super secure seal. Bright white stock gives mailings a professional look. Purchasing envelopes will be at a minimum with the convenient 1000 count giving you more time to concentrate on business. Quality Park envelopes are the obvious choice to for your business. See our array of other envelope options to fit your business s needs!