| http://www.w3.org/ns/prov#value | - For example, the legs 115 a-d of the sizing device may be made of a relatively soft material such as silicone, while the body 125 is made of a relatively hard material such as PMMA. Alternatively, the entire sizing device 105 may be formed of a single material, such as a silicone or acrylic material, and configured such that the body 125 is stiffer than the legs 115 a-d.
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