CHECKBOOK SLEEVE: Measures 3.5" by 6.25" (checkbook fits snug, no wiggle room) Elastic strap for pen Lined with traditional cork backing (the cork is bought this way & can’t be customized like the wallets can be) OPTIONAL MATCHING KEYCHAIN WRISTLET: Measures 5.5" (folded) Looped design for wrist wearing Key fob & ring hardware to highlight cork MATCHING WALLET AVAILABLE in MY LISTINGS Cork Rainbow Checkbook Cover, Vegan Checkbook Sleeve, Cruelty Free Sustainable Cork Cover Eco Friendly Accessory