I've checked out Cyber hair and here's what I've found out. Cyber hair is a upgraded synthetic. It's a Japanese product and none of the Chinese factories have it. I called a distributor of the product and she said that the cost of a standard topper is approximately $2,200 with a special deal if you order 2 units in 12 months (she didn't give me the cost for 2). She could not give guarantees for how long the units will last. Bottom line--it's a good product but very expensive. No guarantees on how long it will last but if they have a deal for 2 unit in 12 months you could expect 6 months out of a unit.
Regards,
John