$20 never been used. We bought it and it doesn’t fit our window. 

https://www.amazon.com/First-Alert-EL52-2-Two-Story-Anti-Slip/dp/B0007OAPT0/ref=mp_s_a_1_1?dchild=1&keywords=first+alert+el52-2+two-story+fire+escape+ladder%2C+steel%2C+anti-slip&qid=1598814851&sprefix=first+alert+el52-2&sr=8-1