Impact - Envelope Supply Option Established for over 14 years, Impact has continually developed their range of products and can offer the following variety of services:Gummed mailing wallets, manufactured from the reel and flexo printed in 1-3 colours or litho-overprinted in 1-4 colours with custom opaques and bespoke envelopes with exact window size and positions.Self-seal, Peel & Seal or Gummed Pockets, Wallet, coloured and square envelopes - all available plain or overprinted in 1-4 colours.Conversion of flat sheets into envelopes to allow full coverage, coated stocks and custom sizes.Over 700 stock lines directly available and supplied in quantities ranging from single boxes through to multi-million items for DM or Door to Door mailing campaigns.Friendly, knowledgeable and helpful staff dedicated to supporting your business and ensuring that you get precisely the correct product for your needs.