This product is a used Xcelite 99PS-40BPN Ballpoint Allen Hex Socket Driver Set with 11 pieces. It includes a case and has a drive type of hex. A couple of the Allen’s are missing the ball end(SEE PHOTOS) The system of measurement is standard (SAE) and the brand is Apex Tool Group. The product is made in China and has a weight of 0.9700. The item length is 5.5in and the item height is 1.5in. The model number is 99PS40BPN. Thanks for looking! Check out our store for more deals on quality items.