The product is used to immobilize the bone of a limb that has been injured by fracture, dislocation, or break. 
Compare to traditional plaster cast, the fiberglass cast has many advantages:
1, Easy and Flexible to operate. 
2, Harden quickly. (It will be harden in 2-3 minutes after open the package.)
3, Excellent Permeability
4, Light weight and Great strength
5, Clear X-ray 
6, Excellent Plasticity
7, Comfortable safety
8, Health and beauty.