I use the Hoopwire from Tutus and Textiles or the 7mm Steel Boning (continuous steel boning) from Vena Cava Designs for my tutu plates. I tend to use the Hoopwire for older dancers tutus as it's quite expensive due to the cost of shipping from the US. All other tutus I use the Vena Cava hooping, it is less expensive but no problem with the quality or weight. For all my bodices I only use spiral boning.