Made of tubular polyethylene for more flexibility. A more economical option for those interested in propolis collecting. Propolis traps are an excellent way to harvest clean propolis from your hive and add extra income. Replace your inner cover with our plastic propolis trap. The bees will fill the grooves of the trap with propolis. To remove simply put the trap inside a plastic bag and freeze overnight. Twist or bang the trap inside the bag to release the propolis. Our plastic traps will last for years of service.