Wallet chain, also is bikers chain, jeans chain, side waist chain.
A wallet chain has two spring hooks attached to both sides. Use either hook to fasten a wallet. The second step is to make surethat the back pocket of your jeans is able to accommodate your wallet. That back pocket should be on the same side of your pantsas a loop for a chain.The last step is to fasten a chain clasp to a belt loop.