Elbow crutches are stability walking aids which allow the elbows to bear some of the user's weight. The crutch height and the elbow angle can be adjusted to meet the user's height requirements.
Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
