https://www.amazon.co.jp/dp/B000PW9WT8/ref=cm_sw_r_tw_dp_KHG02QJV54RXCSV02V23
Foam filled to float your keys, credit card and cash
Visible, bright yellow with black split ring
Floats 5 keys, 2.6oz (75g)
FIRST test floatation in shallow water first
Wallet is not waterproof
Started selling