White opaque envelopes made from 75 micron biodegradable polythene Waterproof, burstproof, tear and puncture resistant Secure peel and seal closure Accepts deeper items easily, no need for a gusset Perfect for heavier weight items such as catalogues, files printouts, textiles and lever arch files Lightweight yet strong and durable, saving on postage costs Easy to write on surface which accepts handwriting, stamps and franking Environmentally friendly and 100% recyclable White Size: DX (460x430mm) Packed 100