OneStopFire.Shop 400 Piece Box of Plastic Packers. 
 
Each box contains a mix of thickness ranging from 1mm-6mm which will help you ensure your doors are fit correctly in compliance with UK regulations. 
 
Each pack contains:
 
67 pieces- 1mm (Green)
67 pieces- 2mm (Black)
67 pieces- 3mm (White)
67 pieces- 4mm (Grey)
66 pieces- 5mm (Blue)
66 pieces- 6mm (Red)