This entrance feeder with lid works by filling a canning jar with sugar syrup or water, then sealing the included lid onto the jar. Pressing the plastic base onto the lid, flipping over the feeder and slide partially into the entrance of , the vacuum pressure in the sealed jar will prevent dripping. Features - Color: White. - Material: Plastic. - Size: 14 x 3 cm. - This bee hive entrance feeder is dense plastic material with a small mouth canning jar metal lid attached. - Much easier to monitor and refill than internal feeders, bees will be happy to eat sugar water from feeders before nearby plants are producing . - Metal lid is perforated and fits plastic or glass canning jars. - Easy to install on the entrance of ; the perforated lid is removable for easy cleaning and securing onto the jar. - Dear buyer, Due to lighting effect,monitor’s brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 2 x Feeder