It can be detached and used in place of the $1 coin that you need to obtain a trolley at the supermarket. Only suitable for trolley with new $1 gold coin.
TJ_PROMOTIONALS HKY1015 Unocom Keychain with Trolley Coin
UNOCOM KEYCHAIN WITH TROLLEY COIN
Packaging: Individual Poly Bag + Black Box
Dimensions: 7.7cm(H) x 3cm(L) x 0.5cm(W)