Manley Retainers 23681TS-16 Super 7 Degree, Lightweight H-13 Tool Steel

For those searching for a slightly more economical alternative to titanium retainers either to help solve a wear problem or because of class rules Manley lightweight H-13 tool steel retainers are your solution. H-13 tool steel allows for better processing than other tool steels typically utilized, thus yielding a stronger, more durable product.
Up to 33% lighter than standard 10 degree steel retainers,
Only 2-4 grams heavier than titanium versions
Heat treated to provide hardness of Rc 56