ASP Extended Rigid Ultra Plus Handcuffs with Steel Swinging Bows & Double lock Button. The new extended rigid ultra handcuffs are non-folding. These hadcuffs do not require a key to activate the double lock. To double lock press the yellow button on the edge of the cuffs with your finger. The entire body is forged aluminum making them very strong and lightweight. They are functionally the same as Speed Cuffs. They have keyholes on both sides of each cuff. 1 key included.