Basildon Bond business envelopes. Opaque and featuring the distinctive Basildon Bond watermark. Designed for use with Basildon Bond quality watermarked A4 paper. Featuring a peel and seal closure with easy open device. This C5 size (229x162 mm) envelopes are available in White colour and having weight of 120g/m2. Available as a 500 pack. Window: (100x40 mm, 62mm in, 25mm up).