80 micron. 100 Pieces in pack.

Wall Mounted Post Box is made from thick aluminium, finished in black with a horse and rider design cast into the front of the box. The letterflap is large enough to take an A4 envelope but still small enough to be secure. The flap itself is sprung to ensure it remains closed to keep out the rain, it also has a restricted anti-theft mechanism to prevent the flap from opening too far which could inadvertently allow a hand to reach inside. For added security the front opening door has an integral lock which comes with four sets of keys. Aperture Length: 27.5cm Aperture Width: 3cm

TPLink 150Mbit WLAN USB HIGHGAINStick Atheros chip with detachable antenna TLWN722N TP LINK