These envelopes close automatically and fit the following wallets:

The Rebel Note Wallet by Secret Tannery
All Harry Robson Wallets
Matthew Wright's Fourseen Wallet
JOL Small Plus Wallet
Harry Robson's Worker's Dream Wallet
Garnier Elite 3 Functions Wallet

If the loading flap is shortened, these envelopes also fit the following wallets:
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JOL Large Plus Wallet
Russ Steven's Anything to Wallet
Wayne Dobson Zippered Wallet
Terry Seabrooke Wallet
Le Paul Wallet
Harry Robson's Worker's Dream Wallet

Price per envelope: 0.50€