The above envelope I believe is a better choice over the metal fastener system. From the standpoint of safety the metal’s edges are sharp enough to cause an accidental cut on the fingers. To me the moistenable glue is much safer. I recommend it’s use.
Envelope is exactly what it purports to be. Well constructed. My issue are two: First it only came in brown I was looking for white. Secondly a box of 50 would have been more than sufficient but only choice was box of 100.