Crown Bees Mason Bee Holes, Insert Refill;
Crown Bees Mason Bee Holes, Insert Refill

These glassine Insert refills are made of 100% recyclable paper that snugly fits inside the traditional Guard Tube or wood block. Do not use Inserts alone. The walls are too thin to protect your cocoons from predators.

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These glassine Insert refills are made of 100% recyclable paper that snugly fits inside the traditional Guard Tube or wood block. Do not use Inserts alone. The walls are too thin to protect your cocoons from predators.

  • Each order contains 60 inserts to fit inside required guard tube
  • Compatible with other guard tubes and standard 5/16" hole blocks on the market
  • Easy removal from either guard tubes with plastic back stops or from crown bees' traditional guard tubes with paper backs
  • Must be used with guard tubes or wood blocks
  • Each order contains 60 inserts to fit inside required guard tube
  • Compatible with other guard tubes and standard 5/16" hole blocks on the market
  • Easy removal from either guard tubes with plastic back stops or from crown bees' traditional guard tubes with paper backs
  • Must be used with guard tubes or wood blocks

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