This size of canopy bed frame is 39"*78"*78", suitable for twin size metal bed or wood bed mosquito net or curtains décor in the bedroom.The bed frame canopy made of high quality Thickened stainless steel, durable and strong enough to put the mosquito netts or curtains on. The diameter of the support column is about 1inch(25mm) and the diameter of the length and width pipes is 0.63inch( 16mm).This twin size canopy bed frame have 5.7inches extended bracket feet with designed so that you can insert and press them underneath the corner feet of the bed to prevent the bed frame from moving and provide better stability.All canopy bed frame poles are threaded to ensure non-slip effect.After tightening, the bed frame bracket will be more secure and will not loosen or collapse.The bed canopy frame attachment is made of stainless steel, which is very durable and will not break or collapse.