These Nuplas pollen traps are design to make collecting pollen easier.
It contains a bypass that enables bees through to collect pollen. This can be closed.
The pollen collection occurs in the sliding trap below the ventilated base.

Mount the pollen trap onto the ventilated base and screw the tray on underneath.
Place your hive back together.
Check tray once a week to see if the bees are bringing in pollen.
If so, take pollen away and place the tray back in empty.
When you want to take the pollen trap off, detatch the top and take away from the hive.

There are 2 variations of this product:
Pollen Trap Complete (with base):
1 x 10 frame ventilated base
1 x pollen tray with screws
1 x pollen trap

Pollen trap without base:
1 x pollen tray with screws
1 x pollen trap

Nuplas recommends 13mm garden poly pipe to be used in the escape holes.
This fits to 10 frame hives only.