These robust corrugated cardboard envelopes are ideal for sending flatter products or documents, for example! The internal dimensions of this envelope are 335 x 500 millimeters (width x length). Note: This is based on the situation where the envelope is flat. The thicker the product you put in, the narrower the effective width becomes. This is because the sides 'come together' when the height needs to increase. The effective width of this envelope can vary between 335 and 312 millimeters. The maximum filling height is 50 millimeters. At that moment, the envelope will also have its smallest width-length ratio of 312 x 500 millimeters. If you are unsure whether your product fits in this envelope, you can always request a sample first! The envelopes are made of sturdy single-corrugated cardboard with a thickness of 1 millimeter. They also have a self-adhesive closing strip, so no tape is required to close the envelope. Finally, a tear strip makes it easy for the recipient to open the envelope with one simple action. The envelopes are fully recyclable and FSC certified. The envelopes are bundled per 25 pieces and packed per 100 pieces (4 bundles) in a cardboard box. There are 1000 pieces on a full pallet (= 40 bundles = 10 boxes).