These are slings for the serious gram-counters. They weigh less than half what most dyneema slings weigh. I make them from the highest grade of Dyneema I can source. The 60cm weighs 8grams, the 90cm weighs 10 grams, and the 120cm weighs 12grams. End-to-end strength is 16kn, which is stronger than any trad gear I own.
 
The 60cm one can tripple up and make a nice trad draw, the 120cm can be worn over the shoulder with the ends clipped together. You can hitch them together to make longer ones, with a strength of approximately 13kn. 
 
This material is quite stiff when it is new, you may want to bend it through a carabiner and run it back and forth some to soften it up. Black is the only color. I can probably do custom lengths, just drop me an email. Loop slings out of this material are also a possibility.