It looks like a high quality card holder and the band seems to be very durable. I only have 2 cards now, but more could easily fit.
BRASS TACKS Leathercraft Handmade Blocking Men's Accessories and Wallets, Card Cases & Money Organizers
89 Review
Credit Card Holder with Chain Cover
70 Review
Minimalist Slim Wallet Men Women Men's Accessories for Wallets, Card Cases & Money Organizers
51 Review
Royce Leather Mens Business Green Men's Accessories in Wallets, Card Cases & Money Organizers
62 Review