Sort:  

Hi @maxili63
welcome to a Simple competition from @bigpower

Your answer is steel cables and that suspends the board by vertical braces of a suspension bridge

hopefully be a winner of Simple competition

Regards @bigpower

Coin Marketplace

STEEM 0.06
TRX 0.32
JST 0.060
BTC 66691.54
ETH 2004.00
USDT 1.00
SBD 0.50