Set of Single Finger Knuckle Duster SFK 03 Stamp Red Anodizing Type 2 & Brass Paracord Bead Skull Of Aztec Priest Hand With Heart & EDC Leather Pouch

The Set includes:
  - SFK Keychain
  - Leather Case (Black or Brown)
  - Bead Aztec Priest hand with heart

Dimensions:
Material - Aerospace Aluminum
Coating - Red Decorative Anodizing Type II
Height - 2 3/64" (52 mm)
Width - 1 15/32" (37 mm)
Thickness - 43/64" (17 mm)
Finger hole diameter - 1" (25 mm)
Weight - 1.9 oz (54 grams)

More similar products you can find here:
Sets of real brass knuckles & paracord bead & EDC pouche in the USA

Special hole allow you to use this product as a Keychain.
550-type paracord lanyard is ideal for this type of produc. 
Nice gift for Him.

EDC Craft official website is the best place to buy original EDC-products at manufacturer's price.