Engineered Carpet Gripper Engineered carpet gripper has more plywood, more pins, more pre-nails per carton than any other brand. We use only premium birch plywood made to our specifications. We do not "buy" plywood; we have it "made". We use only high strength carbon steel nails from non-Chinese manufacturers. Precision Engineering and Automated Manufacturing Our products are designed from the floor up and so is our equipment Our manufacturing machines are designed and built in-house – in our own machine shop. They are truly "one of a kinds". http://traxxcorp.com/