Features:

• They have been manufactured with a high percentage of post-consumer
  recycled material. As they are made from plastic they will not swell,
  shrink or rot, they are completely waterproof.
• Capable of withstanding higher compressive loads than traditional timber flat packers. This also makes them more economical.
• Wedge shaped shim with a distinctive serrated design which allows a
  pair of them to achieve a precise, level, non-slip thickness.
• The slot allows two of them to be placed around the fixing, facing each other, and then adjusted to the desired thickness.
• Size: Green, 78mm x 45mm. Number of Pieces: 100.