Thanks Manny. Thatís exactly what I needed to see. The nocks appear to be delrin if I were to guess and the front well thatís anyoneís guess, they did look like aluminium but I wouldnít want that touching the crown. The Velcroís is easy to get from Amazon . Now I just need to get in touch with the seller. I do have a very good archery shop just down the road in the next town over. Maybe they can help with the other materials.