High quality, food-grade, safe and environmentally friendly. You can shorten the frames to suit any hive. Potentially more honey can be harvested. About three kilos honey per frame can produce. Better design, more convenient and durable. More honey can be harvested. The extraction process is very gentle. Makes the extraction process so much easier for the beekeeper. Honey Key Material: Stainless steel 304. Material quality: Safe and environmentally friendly food grade. Weight of each pcs: 1.1 kg (2.43 lbs). 1 set Bee Honey Hive Frames.